問題詳情

9. If we calculate sample mean from the population in question 8, with sample size equal to 2. Let

denote the theoretical density and cumulative distributions of the sarplemean, respectively. Which of the following statement is the most correct one?
(A)


(B)


(C)

 
(D)


(E)

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