A.0.05 B.0.01 C.0.1 D.0.5
假設(shè)X~N(0,1),概率密度為f(x),則有()。
A.A B.B C.C D.D
A.0.0228,0.1587 B.0.1587,0.02280 C.3413,0.4772 D.0.4772,0.3413