Miesięczne zarobki dwudziestu pracowników w pewnym dziale wynosiły w tysiącach: |
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2,5 2,3 3,5 2,1 1,5 1,75 4,7 3,8 2,94 4,75 3,4 3,5 2,76 3,1 2,8 2,9 4,1 3,8 1,2 1,5 |
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2,2 2,6 2,8 3,2 3,8 2,1 2,8 3,8 3,2 3,1 4,0 3,3 3,8 2,9 2,6 |
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a) Określić zbiorowość i jednostkę statystyczną oraz rodzaj cechy statystycznej. |
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b) Sporządzić szereg szczegółowy. c) Sporządzić szereg rozdzielczy. |
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d) Wykonać histogram i diagram liczebności dla szeregu rozdzielczego. |
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e) Wyznaczyć wartości liczebności skumulowanej i wskaźnika struktury. |
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f) Wykonać histogram i diagram liczebności skumulowanej i wskaźnika struktury. |
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Zbiorowość popuclacja generalna |
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Pracownicy |
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Zbiorowość próbna(próba) |
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Pracownicy pewniego działu |
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Cecha statystyczna |
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Wynagrozdenie |
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Liczebność próby n |
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35 |
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Liczba wariantów wartości cechy k |
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22 |
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Wartości cechy |
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1,2 1,5 1,75 2,1 2,2 2,3 2,5 2,6 2,76 2,8 2,9 |
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2,94 3,1 3,2 3,3 3,4 3,5 3,8 4,0 4,1 4,7 4,75 |
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Szereg szczegółowy |
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nr. Wariantu wartości cechy |
wariant (wartość cechy) |
obliczenia pomocnicze (xi - x- )^2 |
obliczenia pomocnicze (xi - x- )^3 |
obliczenia pomocnicze (xi - x- )^4 |
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wariant cechy |
liczebnosc |
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1 |
1,2 |
3,25 |
-5,86 |
10,56 |
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1,2 |
1 |
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2 |
1,5 |
2,26 |
-3,39 |
5,10 |
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1,5 |
2 |
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3 |
1,5 |
2,26 |
-3,39 |
5,10 |
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1,75 |
1 |
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4 |
1,75 |
1,57 |
-1,97 |
2,46 |
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2,1 |
2 |
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5 |
2,1 |
0,82 |
-0,74 |
0,66 |
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2,2 |
1 |
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6 |
2,1 |
0,82 |
-0,74 |
0,66 |
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2,3 |
1 |
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7 |
2,2 |
0,64 |
-0,52 |
0,42 |
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2,5 |
1 |
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8 |
2,3 |
0,49 |
-0,35 |
0,24 |
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2,6 |
2 |
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9 |
2,5 |
0,25 |
-0,13 |
0,06 |
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2,76 |
1 |
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10 |
2,6 |
0,16 |
-0,07 |
0,03 |
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2,8 |
3 |
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11 |
2,6 |
0,16 |
-0,07 |
0,03 |
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2,9 |
2 |
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12 |
2,76 |
0,06 |
-0,01 |
0,00 |
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2,94 |
1 |
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13 |
2,8 |
0,04 |
-0,01 |
0,00 |
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3,1 |
2 |
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14 |
2,8 |
0,04 |
-0,01 |
0,00 |
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3,2 |
2 |
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15 |
2,8 |
0,04 |
-0,01 |
0,00 |
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3,3 |
1 |
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16 |
2,9 |
0,01 |
0,00 |
0,00 |
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3,4 |
1 |
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17 |
2,9 |
0,01 |
0,00 |
0,00 |
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3,5 |
2 |
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18 |
2,94 |
0,00 |
0,00 |
0,00 |
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3,8 |
5 |
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19 |
3,1 |
0,01 |
0,00 |
0,00 |
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4 |
1 |
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20 |
3,1 |
0,01 |
0,00 |
0,00 |
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4,1 |
1 |
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21 |
3,2 |
0,04 |
0,01 |
0,00 |
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4,7 |
1 |
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22 |
3,2 |
0,04 |
0,01 |
0,00 |
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4,75 |
1 |
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23 |
3,3 |
0,09 |
0,03 |
0,01 |
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24 |
3,4 |
0,16 |
0,06 |
0,02 |
max = 5 |
Mo= |
3,8 |
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25 |
3,5 |
0,25 |
0,12 |
0,06 |
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26 |
3,5 |
0,25 |
0,12 |
0,06 |
średnia= |
=SUMA(B18:B52)/A52
3,00285714285714 |
3,00 |
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27 |
3,8 |
0,64 |
0,51 |
0,40 |
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28 |
3,8 |
0,64 |
0,51 |
0,40 |
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29 |
3,8 |
0,64 |
0,51 |
0,40 |
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30 |
3,8 |
0,64 |
0,51 |
0,40 |
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31 |
3,8 |
0,64 |
0,51 |
0,40 |
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32 |
4 |
0,99 |
0,99 |
0,99 |
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33 |
4,1 |
1,20 |
1,32 |
1,45 |
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34 |
4,7 |
2,88 |
4,89 |
8,30 |
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35 |
4,75 |
3,05 |
5,33 |
9,32 |
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Wskaźnik skośności |
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suma obl pom I = |
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=SUMA(C18:C52)
25,04 |
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ilosc wariantow = |
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35 |
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wariancja (s^2)= |
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=F54/F55
0,72 |
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As = |
=(H43-H41)/G57
-0,94 |
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odchylenie standardowe (s) = |
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=PIERWIASTEK(F56)
0,85 |
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Współczynnik asymetrii |
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35 |
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suma (xi - x- )^3 |
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=SUMA(D18:D52)
-1,83 |
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m3 = |
=C69/G67
-0,05 |
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s^3 = |
=(G57)^3
0,60 |
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A= |
=B70/B71
-0,09 |
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Wykres pudełkowy |
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min |
Q0= |
=KWARTYL(B$18:B$52;0)
1,2 |
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25% |
Q1= |
2,55 |
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mediana |
Q2= |
2,94 |
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75% |
Q3= |
=KWARTYL(B$18:B$52;3)
3,65 |
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max |
Q4= |
4,75 |
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Kurtoza |
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n = |
35 |
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suma (xi - x- )^4 = |
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=SUMA(E18:E52)
47,57 |
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m4 = |
=G102/F100
1,36 |
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s^4 = |
=G57^4
0,51 |
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K' = |
=(F104/F105)-3
-0,34 |
K = |
=F104/F105
2,66 |
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Szereg rozdzielczy przedzialowy |
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nr. Wariantu |
przedział klasowy |
liczebność przedziału klasowego |
wskaźnik struktury(częstość) |
liczebność skumulowana |
skumulowany wskaźnik struktury |
obliczenia pomocnicz, środek przedziału ((xi0+xi1)/2)*ni |
obliczenia pomocnicze |
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k i |
x i |
n i |
w i |
n isk |
w isk |
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(& - sr)^2*ni |
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1 |
1,2 - 1,8 |
4 |
0,114 |
4 |
0,114 |
6 |
8,69 |
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2 |
1,8 - 2,4 |
4 |
0,114 |
8 |
0,229 |
8,4 |
3,06 |
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3 |
2,4 - 3 |
10 |
0,286 |
18 |
0,514 |
27 |
0,75 |
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4 |
3,0 - 3,6 |
8 |
0,229 |
26 |
0,743 |
26,4 |
0,85 |
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5 |
3,6 - 4,2 |
7 |
0,200 |
33 |
0,943 |
27,3 |
6,00 |
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6 |
4,2 - 4,8 |
2 |
0,057 |
35 |
1,000 |
=((4,2+4,8)/2*C116)
9 |
=((((4,2+4,8)/2)-D124)^2)*C116
4,66 |
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suma |
35 |
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suma |
104,1 |
24,01 |
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gdzie: ni & ni - oznacza środek przedziału klasowego (xi0 + xi1)/2. |
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średnia arytmetyczna = |
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=G117/C117
2,97 |
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Obl pom. |
obl pom |
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(xi - sr)^3*ni |
(xi - sr)^4*ni |
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Modalna |
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-12,82 |
18,90 |
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-2,67 |
2,34 |
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-0,21 |
0,06 |
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0,28 |
0,09 |
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5,55 |
5,14 |
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Mo= |
=2,4+((10-4)/((10-4)+(10-8))*0,6)
2,85 |
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=((((4,2+4,8)/2)-D124)^3)*C116
7,10 |
=((((4,2+4,8)/2)-D124)^4)*C116
10,84 |
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suma = |
-2,76 |
37,36 |
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Wariancja |
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s^2 = |
=H117/C117
0,69 |
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s = |
=PIERWIASTEK(E135)
0,83 |
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Współczynnik skośności |
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As = |
=(D124-B131)/E136
0,15 |
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Współczynnik asymetrii |
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s^3 = |
=E136^3
0,57 |
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m3 = |
=G132/C117
-0,08 |
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A = |
=F150/F147
-0,14 |
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Wykres pudełkowy |
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min |
Q0= |
1,2 |
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25% |
Q1= |
=1,8+((E168-E111)/C112)*0,6
2,51 |
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mediana |
Q2= |
=2,4+(((35/2)-E112)/C113)*0,6
2,97 |
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75% |
Q3= |
=3+((B168-E113)/C114)*0,6
3,62 |
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max |
Q4= |
4,8 |
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N Q2 |
=(3*C117)/4
26,25 |
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N Q1 |
=C117/4
8,75 |
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Kurtoza |
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m4 = |
=H132/C117
1,07 |
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s^4 = |
=E136^4
0,47 |
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K = |
=C196/C197
2,27 |
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K' = |
=(C196/C197)-3
-0,73 |
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Dane podstawoe |
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Zbiorowość (populacja) generalna: |
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województwa |
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Zbiorowość próbna(próbna) |
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|
województwa w Polsce sprzed 1999r |
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Cecha statyczna |
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liczba gmin |
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Liczebnosc próby n |
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49 |
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Liczba wariantów(wartości) cechy |
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k>12 |
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Warianty (wartości) cechy |
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|
17 |
30 |
32 |
37 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
49 |
51 |
54 |
55 |
56 |
57 |
58 |
59 |
62 |
63 |
65 |
69 |
74 |
78 |
91 |
wartość minimalna |
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x min:17 |
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wartosc maksymalna |
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x max: 91 |
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rozstęp |
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max-min: 74 |
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Ustalenie liczby przediałów: |
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k=7 |
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Rozpiętość przedziałów klasowych : h=74/7~10,57~~11-zaokrąglamy do najbliższej liczby całkowitej |
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Początek pierwszego przedziału klasowego x m= x min =17 |
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Przyjmujemy, że rozpiętość przedziałów klasowych jest taka sama dla wszystkich klas. |
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szereg szczegółowy |
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Szereg rozdzielczy przedzialowy dla cechy skokowej |
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nr. Wariantu wartości cechy |
wariant (wartość cechy) |
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|
nr. Wariantu |
przedział klasowy |
liczebność przedziału klasowego |
wskaźnik struktury(częstość) |
liczebność skumulowana |
skumulowany wskaźnik struktury |
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1 |
17 |
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k i |
x i |
n i |
w i |
n isk |
w isk |
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2 |
30 |
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1 |
17 -27 |
1 |
0,020 |
1 |
0,020 |
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3 |
32 |
|
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2 |
28-38 |
4 |
0,082 |
5 |
0,102 |
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4 |
37 |
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3 |
39 - 49 |
22 |
0,449 |
27 |
0,551 |
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5 |
37 |
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4 |
50 - 60 |
14 |
0,286 |
41 |
0,837 |
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6 |
39 |
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5 |
61- 71 |
5 |
0,102 |
46 |
0,939 |
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7 |
40 |
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6 |
72 - 82 |
2 |
0,041 |
48 |
0,980 |
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8 |
40 |
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7 |
83 - 93 |
1 |
0,020 |
49 |
1,000 |
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|
9 |
40 |
|
|
|
n= |
49 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10 |
40 |
|
|
szereg rozdzielczy przedziałowy prosty |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11 |
41 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
12 |
41 |
|
|
|
szereg rozdzielczy przedziałowy skumulowany |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
13 |
42 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
14 |
42 |
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
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|
15 |
43 |
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
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|
16 |
43 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
17 |
43 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
18 |
44 |
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
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|
19 |
45 |
|
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|
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|
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|
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|
20 |
46 |
|
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21 |
46 |
|
|
|
|
|
|
|
|
|
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|
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|
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|
|
|
|
|
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22 |
47 |
|
|
|
|
|
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|
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|
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|
|
|
|
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|
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|
23 |
47 |
|
|
|
|
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|
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|
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|
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|
24 |
47 |
|
|
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|
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|
|
|
|
|
|
|
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|
25 |
48 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
26 |
48 |
|
|
|
|
|
|
|
|
|
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|
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|
|
|
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|
|
27 |
49 |
|
|
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|
|
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28 |
51 |
|
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29 |
54 |
|
|
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|
|
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30 |
54 |
|
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|
|
|
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|
31 |
55 |
|
|
|
|
|
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|
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|
|
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|
|
|
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|
32 |
55 |
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
33 |
55 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
34 |
56 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
35 |
57 |
|
|
|
|
|
|
|
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|
|
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|
|
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|
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|
36 |
57 |
|
|
|
|
|
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|
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37 |
58 |
|
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|
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38 |
58 |
|
|
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|
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|
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|
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39 |
58 |
|
|
|
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|
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|
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|
|
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|
40 |
59 |
|
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|
|
|
|
|
|
|
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41 |
59 |
|
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42 |
62 |
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43 |
63 |
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44 |
63 |
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45 |
65 |
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46 |
69 |
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47 |
74 |
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|
48 |
78 |
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|
49 |
91 |
|
|
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|
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|
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|
|
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|
|
|
n= |
49 |
|
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|
|
|
|
|
|
|
1523 |
3254 |
3704 |
3788 |
3866 |
3960 |
4037 |
4151 |
4154 |
4168 |
4379 |
4397 |
4402 |
4437 |
4869 |
5117 |
5139 |
5348 |
5348 |
5576 |
5702 |
6103 |
6182 |
6266 |
6283 |
6287 |
6362 |
6498 |
6512 |
6650 |
6684 |
6792 |
6980 |
7294 |
7394 |
7453 |
8151 |
8205 |
8470 |
8484 |
8499 |
8535 |
8868 |
9211 |
9982 |
10055 |
10349 |
10490 |
12327 |
|
1,5 |
3,3 |
3,7 |
3,8 |
3,9 |
4,0 |
4,0 |
4,2 |
4,2 |
4,2 |
4,4 |
4,4 |
4,4 |
4,4 |
4,9 |
5,1 |
5,1 |
5,3 |
5,3 |
5,6 |
5,7 |
6,1 |
6,2 |
6,3 |
6,3 |
6,3 |
6,4 |
6,5 |
6,5 |
6,7 |
6,7 |
6,8 |
7,0 |
7,3 |
7,4 |
7,5 |
8,2 |
8,2 |
8,5 |
8,5 |
8,5 |
8,5 |
8,9 |
9,2 |
10,0 |
10,1 |
10,3 |
10,5 |
12,3 |
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|
Dane podstawoe |
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|
Zbiorowość (populacja) generalna: |
|
|
|
województwa |
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|
Zbiorowość próbna(próbna) |
|
|
|
województwa w Polsce sprzed 1999r |
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|
Cecha statyczna |
|
|
|
powierzchnia województwa w tysiącach km2 |
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|
Liczebnosc próby n |
|
|
|
49 |
|
|
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|
Liczba wariantów(wartości) cechy |
|
|
|
k>12 |
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|
Warianty (wartości) cechy x i(w tys. Km2) |
|
|
|
1,5; 3,3; 3,7; 3,8; 3,9; 4,0; 4,2;4,4;4,9; 5,1; 5,3;5,6; 5,7; 6,1; 6,2; 6,3; 6,4; 6,5; 6,7; 6,8; 7,0; 7,3; 7,4; 7,5; 8,2; 8,5; 8,9; 9,2; 10,0; 10,1; 10,3; 10,5; 12,3 |
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|
wartość minimalna |
|
x min 1,5 |
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|
wartosc maksymalna |
|
x max 12,3 |
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|
rozstęp |
R = xmax- xmin = 12,3 - 1,5 = 10,8 tys km2 |
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|
Liczbę klas przyjmujemy podobnie jak w/w przykładzie |
|
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|
k = 7 |
|
dwa warianty do zrobienia w domu |
|
|
histogramy |
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|
Ustalenie liczby przediałów: |
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Rozpiętość przedziału taka sama dla wszystkich -k przyjmujemy z nadmiarem, tzn. |
|
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|
Rozpiętość przedziału taka sama dla wszystkich -k przyjmujemy z nadmiarem, tzn. |
|
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|
h = 10,8/7~~1,543~~1,600km2, początek pierwszego przedziału klasowego x 01 = 1,5 tys.km2 |
|
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|
h = 10,8/7~~1,543~~1,600km2, początek pierwszego przedziału klasowego x 01 = 1,5 tys.km2 |
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7 klas |
1,6 |
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8 klas |
1,6 |
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|
nr. Wariantu wartości cechy |
wariant (wartość cechy) |
|
|
nr. Wariantu |
przedział klasowy |
liczebność przedziału klasowego |
wskaźnik struktury(częstość) |
liczebność skumulowana |
skumulowany wskaźnik struktury |
obl pom x |
|
obl pom x |
obl pom |
obl pom |
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|
|
nr. Wariantu |
przedział klasowy |
liczebność przedziału klasowego |
wskaźnik struktury(częstość) |
liczebność skumulowana |
skumulowany wskaźnik struktury |
|
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|
1 |
1,5 |
|
|
k i |
x i |
n i |
w i |
n isk |
w isk |
xi * ni |
(x-sr)^2 |
(x-sr)^3 |
|xi-sr| |
(x-sr)^4 |
|
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k i |
x i |
n i |
w i |
n isk |
w isk |
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2 |
3,3 |
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1 |
1,5 - 3,1 |
1 |
0,020408163265306 |
1 |
0,020408163265306 |
2,3 |
16,66 |
-68,00 |
4,08 |
277,55 |
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1 |
1,5 - 3,0 |
1 |
0,020408163265306 |
1 |
0,020408163265306 |
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3 |
3,7 |
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2 |
3,1 - 4,7 |
13 |
0,26530612244898 |
14 |
0,285714285714286 |
50,7 |
6,16 |
-198,68 |
2,48 |
493,05 |
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2 |
3,0 - 4,5 |
13 |
0,26530612244898 |
14 |
0,285714285714286 |
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4 |
3,8 |
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3 |
4,7 - 6,3 |
12 |
0,244897959183673 |
26 |
0,530612244897959 |
66 |
0,78 |
-8,22 |
0,88 |
7,25 |
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3 |
4,5 - 6 |
7 |
0,142857142857143 |
21 |
0,428571428571429 |
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5 |
3,9 |
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4 |
6,3 - 7,9 |
10 |
0,204081632653061 |
36 |
0,73469387755102 |
71 |
0,52 |
3,71 |
0,72 |
2,66 |
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4 |
6 - 7,5 |
15 |
0,306122448979592 |
36 |
0,73469387755102 |
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6 |
4,0 |
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5 |
7,9 - 9,5 |
8 |
0,163265306122449 |
44 |
0,897959183673469 |
69,6 |
5,37 |
99,69 |
2,32 |
231,11 |
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5 |
7,5 - 9 |
7 |
0,142857142857143 |
43 |
0,877551020408163 |
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7 |
4,0 |
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6 |
9,5 - 11,1 |
4 |
0,081632653061225 |
48 |
0,979591836734694 |
41,2 |
15,35 |
240,64 |
3,92 |
942,93 |
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6 |
9 - 10,5 |
5 |
0,102040816326531 |
48 |
0,979591836734694 |
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8 |
4,2 |
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7 |
11,1 - 12,7 |
1 |
0,020408163265306 |
49 |
1 |
11,9 |
30,45 |
168,05 |
5,52 |
927,35 |
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7 |
10,5 - 12 |
0 |
0 |
48 |
0,979591836734694 |
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9 |
4,2 |
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suma |
49 |
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suma |
312,7 |
75,29 |
237,18 |
19,92 |
2881,90 |
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8 |
12,5 - 14 |
1 |
0,020408163265306 |
49 |
1 |
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10 |
4,2 |
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suma |
49 |
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11 |
4,4 |
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12 |
4,4 |
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13 |
4,4 |
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14 |
4,4 |
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srednia |
6,38 |
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15 |
4,9 |
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m - numer przedziału (klasy), w którym występuje modalna, |
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16 |
5,1 |
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x0m - dolna granica przedziału, w którym występuje modalna, |
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17 |
5,1 |
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nm - liczebność przedziału modalnej, tzn. klasy o numerze m, |
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18 |
5,3 |
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nm-1; nm+1 - liczebność klas poprzedzającej i następnej, o numerach m - 1 i m + 1, |
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19 |
5,3 |
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hm - rozpiętość przedziału klasowego, w którym występuje modalna. |
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20 |
5,6 |
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21 |
5,7 |
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Mo= 3,1 +((13-1)/((13-1)+(13-12))*1,6 =4,58 |
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22 |
6,1 |
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4,57692307692308 |
~~ |
4,58 |
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23 |
6,2 |
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24 |
6,3 |
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25 |
6,3 |
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26 |
6,3 |
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27 |
6,4 |
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28 |
6,5 |
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29 |
6,5 |
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30 |
6,7 |
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31 |
6,7 |
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32 |
6,8 |
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33 |
7,0 |
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34 |
7,3 |
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35 |
7,4 |
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36 |
7,5 |
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37 |
8,2 |
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38 |
8,2 |
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39 |
8,5 |
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40 |
8,5 |
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41 |
8,5 |
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42 |
8,5 |
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43 |
8,9 |
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44 |
9,2 |
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45 |
10,0 |
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46 |
10,1 |
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47 |
10,3 |
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48 |
10,5 |
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49 |
12,3 |
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suma |
313,1 |
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kwantyle |
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sr= |
6,39 |
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szereg rozdzielczy przedzialowy |
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m - numer przedziału (klasy), w której występuje mediana, |
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x0m - dolna granica przedziału, w którym występuje mediana |
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nm - liczebność przedziału mediany, tzn. klasy o numerze m, |
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- suma liczebności przedziałów poprzedzających przedział mediany, czyli liczebność skumulowana, |
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hm - rozpiętość przedziału klasowego, w którym jest mediana, |
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NMe - pozycja mediany, czyli NMe = n/2 |
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Me= |
6,03333333333333 |
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Wariancje |
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s^2 = |
1,54 |
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s= |
1,24 |
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Współczybnnik asymetrii |
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kurtoza(funckcja w excelu) |
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Wskażnik skośności |
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As= |
1,46 |
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Współczybnnik asymetrii |
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|
m3= |
4,84 |
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s^3 |
1,90 |
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A= |
2,54 |
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Odchylenie przeciętne |
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kurtuaza |
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m4 |
58,81 |
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K= |
24,91 |
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s^4 |
2,36 |
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K' = |
21,91 |
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Przykład 1 |
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Pracownik wykonujemy detale tego samego typu. Przeprowadzono pomiar czasu wykonania piętnqastu detali i otrzymano następujące wyniki (w minutach) |
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10,10,12,12,12,15,15,15,15,18,18,20,20,21,21 |
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MODALNA |
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szereg szczegółowy |
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szereg rozdzielczy puynktowy |
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numer wartości cechy |
Czas wykonania jednego detalu w miutach |
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Nr klasy |
wariatn wartości cechy |
liczebność przedziału klasowego |
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i |
x |
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ki |
xi |
ni |
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1 |
10 |
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1 |
10 |
2 |
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2 |
10 |
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2 |
12 |
3 |
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3 |
12 |
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3 |
15 |
4 |
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4 |
12 |
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4 |
18 |
2 |
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5 |
12 |
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5 |
20 |
2 |
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6 |
15 |
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6 |
21 |
2 |
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7 |
15 |
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n= |
15 |
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8 |
15 |
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9 |
15 |
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10 |
18 |
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11 |
18 |
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12 |
20 |
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13 |
20 |
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14 |
21 |
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15 |
21 |
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srednia arytmetyczna |
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numer wartości cechy |
Czas wykonania jednego detalu w miutach |
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Nr klasy |
wariatn wartości cechy |
liczebność przedziału klasowego |
oblicz pom |
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i |
x |
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ki |
xi |
ni |
xi*ni |
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1 |
10 |
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1 |
10 |
2 |
20 |
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2 |
10 |
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2 |
12 |
3 |
36 |
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3 |
12 |
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3 |
15 |
4 |
60 |
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4 |
12 |
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4 |
18 |
2 |
36 |
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5 |
12 |
średnia arytmetyczna funkcja |
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5 |
20 |
2 |
40 |
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6 |
15 |
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15,6 |
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6 |
21 |
2 |
42 |
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7 |
15 |
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n= |
15 |
234 |
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8 |
15 |
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9 |
15 |
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10 |
18 |
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11 |
18 |
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12 |
20 |
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13 |
20 |
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14 |
21 |
średnia arytmetyczna |
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średnia arytmetyczna |
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15 |
21 |
15,6 |
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15,6 |
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suma |
234 |
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kwantyle |
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min |
Q0= |
10 |
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25% |
Q1= |
12 |
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mediana |
Q2= |
15 |
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75% |
Q3= |
19 |
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max |
Q4= |
21 |
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Me=x8= |
15 |
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wykres pudelkowy |
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wariancja |
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numer wartości cechy |
Czas wykonania jednego detalu w miutach |
oblicz pomoc. |
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Nr klasy |
wariatn wartości cechy |
liczebność przedziału klasowego |
oblicz pom |
obl pom |
obl pom |
obl pom |
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i |
xi |
(xi - x- )^2 |
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ki |
xi |
ni |
(xi - x- )^2 ni |
(xi - sr)^4 *ni |
(xi - sr)^3 *ni |
|xi - sr| |
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1 |
10 |
31,36 |
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1 |
10 |
2 |
62,72 |
-351,23 |
1966,90 |
5,6 |
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2 |
10 |
31,36 |
2 |
12 |
3 |
38,88 |
-139,97 |
503,88 |
3,6 |
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3 |
12 |
12,96 |
3 |
15 |
4 |
1,44 |
-0,86 |
0,52 |
0,6 |
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4 |
12 |
12,96 |
4 |
18 |
2 |
11,52 |
27,65 |
66,36 |
2,4 |
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5 |
12 |
12,96 |
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5 |
20 |
2 |
38,72 |
170,37 |
749,62 |
4,4 |
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6 |
15 |
0,36 |
s^2= |
14,11 |
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6 |
21 |
2 |
58,32 |
314,93 |
1700,61 |
5,4 |
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7 |
15 |
0,36 |
s= |
3,76 |
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n= |
15 |
211,6 |
20,8800000000002 |
4987,89 |
22 |
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8 |
15 |
0,36 |
s= |
3,76 |
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9 |
15 |
0,36 |
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10 |
18 |
5,76 |
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11 |
18 |
5,76 |
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12 |
20 |
19,36 |
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13 |
20 |
19,36 |
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s^2= |
14,11 |
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14 |
21 |
29,16 |
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s= |
3,76 |
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15 |
21 |
29,16 |
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suma |
15,6 |
211,6 |
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15 |
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14,11 |
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Wskażnik skośności |
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As = |
0,16 |
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Współczybnnik asymetrii |
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m3 = |
1,39200000000001 |
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s^3 = |
52,98 |
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A= |
0,026272574293845 |
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kurtoza |
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m4= |
332,53 |
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K= |
1,67 |
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s^4= |
199,00 |
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K'= |
-1,33 |
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odchylenie przecietne |
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d= |
1,47 |
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