阿摩線上測驗
If X1. X2, .... 
are mutually independent norma! random variables, with their means all equal to 3 and variances equal to 10, what is the variance of 
?
(A) 400
(D) 200m
(B) 200
(C) 400m
(E) None ofthe above choices
(a)-
(d).
are mutually independent norma! random variables, with their means all equal to 3 and variances equal to 10, what is the variance of ?(A) 400
(D) 200m
(B) 200
(C) 400m
(E) None ofthe above choices
(a)-
(d).
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統計： 尚無統計資料
統計： 尚無統計資料