정규분포의 표준화.....
X:N(m,
2
s
)
Z=
X-m
s
표준화
Z:N(0,
2
1
)
평균(m)
60
표준편차(s)
3
​
PlotRange
Fixed
P ( a ≤ X ≤ b ) = P (
57
≤ X ≤
63
)
P (
a ≤ X ≤ b
)
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