問題詳情

4. Let U be uniformly distributed over [0,1]. Which of the following statements is wrong?
(A) E[U]=1/2
(B) Var(U)= 1/12
(C)Let Y = -In (U). The pdf of Y is

.
(D) Let Z = eU. The pdfofZ is f(z) = 1/z, for 1 ≤ z ≤ e.
(E) The MGF of U is

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增