問題詳情

Problem 20. (3.0 %) Let Xi,i = 1,2, ... be independent random variablesall distributed according to the pdf fX(x) = x/8 for 0 ≤ x ≤ 4. Let S =

. Then P(S ＞3) is approximately equal to
(A)

 
(B)


(C)

 
(D)

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