問題詳情
Y is distributed N(0,4), and X is distributed N(0,16). Please calculate B(Y2) and E(X3).
(A) E(Y2) = 4 and E(X3) = 16
(B) E(Y2) = 2 and E(X3) = 64
(C) E(Y2) = 4 and E(X3) =0
(D) E(Y2) = 2 and E(X3) = 8
(E) None of the above choices (a)-(d).
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增