問題詳情

7. Suppose we took a pair of randor: samples (X1,X2), with replacement frot: pogulation f(X):

Find E(

) and P(X＞1)
(A) E(

) - 14, P(

＞1)=0.50
(B) E (

) = 1.4, P(

 ＞1)=0.49
(C) E (

) =1.6. P(

＞1)=0.69
(D) E (

)= 1.6, P(

＞ 1)=0.71

參考答案

答案：[無官方正解]
難度：計算中-1
書單：大台灣元寶外送茶加賴70j8 或c77088幼齒學生妹附帶客評+