問題詳情

12. If X, Y, Z are pasitive valued and all have means of 5 and standard deviations of 3, estinnate the prooubility that theaveruge of X, Y, and Z is less than J0 by Chebyshev's inequality. If X, Y and Z all have correlation coeftieients of 0.3.
(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