阿摩線上測驗
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
答案：登入後查看
統計： A(0), B(0), C(0), D(1), E(0) #3188927
統計： A(0), B(0), C(0), D(1), E(0) #3188927
