题目

设随机变量X~N(0,1),对于alpha =0.05,定义Z_0.05为P(X>Z_0.05)=0.05,则P(mid X mid A. 0.95()B. 0.05()C. 0.10D. 0.90

$$ 设随机变量X~N(0,1),对于\alpha =0.05,定义Z\_0.05为P(X>Z\_0.05)=0.05,则P(\mid X \mid < Z\_0.05)= $$

A. 0.95()

B. 0.05()

C. 0.10

D. 0.90

题目解答

答案

D. 0.90