"
k H" N k H" 1 + 3.322 log N







h = R/k
R
l H"
k
R2 = l · k > R R2 - R < l xmin
R2 = l · k > R R2 - R > l
R2 - R R2 - R
x2 = xmin - x2 = xmax + .
min max
2 2







x1, x2, . . . , xn
n
ni
wi ni/n
k=
i=1 ni
k
wi
i=1

"
n
x1 + x2 + · · · + xn i=1 xi
x = =
Å»
n n

k k
Ú
x1n1 + x2n2 + · · · + xknk i=1 xini xini
i=1
x = = , x = ,
Å» Å»
n n n
ni
xi i
Ú

"
n
H = n 1 ;
i=1
xi
"
"
n
xg = x1 · x2 · · · xn;
Å»
" D xmin xmax

n0 - n-
D = x0D + hD,
n0 - n- + n0 - n+
x0D hD n0
n-/n+




"
Q1
Me Q3

Q1
Q3

x( ), n
n+1
2

Me =
1
x( ) + x( +1) , n
n n
2
2 2


m-1

n hMe
Me = x0M + - ni ,
2 nMe
i=1
 x0M hMe nMe
m-1
ni
i=1

"
R = xmax - xmin;
"
n

1
d = |xi - x|;
Å»
n
i=1
"

Q3 - Q1
Q = ;
2
"

n

2
1
s2 = (xi - x)2 = x2 - x ;
Å» Å»
n
i=1

k k

1 1
s2 = (xi - x)2ni s2 = (xi - x)2ni;
Å» Ú Å»
n n
i=1 i=1
"
"
s = s2;
"

x = Me = D
Å»
x > Me > D x < Me < D
Å» Å»
"
Ws = x - D;
Å»
"
M3
As = .
s3

"
M4
K = .
s4

" l " N
n

1
ml = xl
i
n
i=1
" l " N
n

l
1
Ml = xi - x
Å»
n
i=1







P (&!) = 1 P (") = 0
0 d" P (A) d" 1
A )" B = " P (A *" B) = P (A) + P (B)
A P (Ac) = 1 - P (A)
&! n
A k

k
P (A) = .
n




X Y Z

{x1, x2, . . .}


X

X F : R [0, 1]
F (x) = P (X < x).
P (a d" X < b) = F (b) - F (a)
X
n

EX = xi · pi.
i=1
pi xi
EX = 3, 5
X
n

D2X = E(X - EX)2 = (xi - EX)2 · pi.
i=1

D2X = E(X2) - (EX)2