問題詳情
166. The distribution of values of the retirement package offered by a company to new employees is modeled by the probability density function
Calculate the variance of the retirement package value for a new employee, given that the value is at least 10.
(A) 15
(B) 20
(C) 25
(D) 30
(E) 35
參考答案
答案：C
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中