問題詳情
239. The number of minor surgeries, X, and the number of major surgeries, Y, for a policyholder, this decade, has joint cumulative distribution function

for nonnegative integers x and y.
Calculate the probability that the policyholder experiences exactly three minor surgeries and exactly three major surgeries this decade.
(A) 0.00004
(B) 0.00040
(C) 0.03244
(D) 0.06800
(E) 0.12440
參考答案
答案:B
統計:A:0,B:0,C:0,D:0,E:0
難度:計算中