1 2
f(x) = " e-(x-µ) /2Ã2 , -" < x < ".
2Ä„Ã
µ Ã
µ = 0 Ã2 = 1
µ = 20, 5 Ã = 5, 5
Q1
1
P (X d" Q1) = .
4
Q2
1
P (X d" Q2) = .
2
Q3
3
P (X d" Q3) = .
4
n Pn
n
P (X d" Pn) = .
100
X
Q1 Q3 P90
X µ = 13.5 Ã = 2.5