Mathematics
Senior High
問:正規分布N(10,5²)に従う確率変数Xについて次の等式が成り立つように定数aの値を求めよ
式が分かりません教えてください🙇🏻♀️
(4) P(|X-10≥a)=0.0278
P ( 1x = 10 | 3 a) = |_ P/1x - 10| ≤ a)
1 - 2 P | // )
1 - 2P ( 3² ) = 0.0278
P( =) = 0.4861
正規分布表から
6
= 2.2
5
a = 11
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