問題詳情
65. A charity receives 2025 contributions. Contributions are assumed to be mutually independent and identically distributed with mean 3125 and standard deviation 250.
Calculate the approximate 90th percentile for the distribution of the total contributions received.
(A) 6,328,000
(B) 6,338,000
(C) 6,343,000
(D) 6,784,000
(E) 6,977,000
參考答案
答案：C
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中