問題詳情

9. If a variable x is exponentially distributed with the following probability density function,

what is the expected value of x?( 5%) 
(A) e2
(B) 2 
(C) 0.5
(D) None of the above

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