寫作批改
VIP與詳解卡管理
私人筆記( 0 )
187. An actuary has done an analysis of ..-阿摩線上測驗
【客服暫停服務時間】10/02(三)~10/03(四)，影響：阿摩粉絲團、系統回報、信箱、鑽石兌換商城出貨事宜。
|
|
|
187. An actuary has done an analysis of all policies that cover two cars. 70% of the policies
are of type A for both cars, and 30% of the policies are of type B for both cars. The
number of claims on different cars across all policies are mutually independent. The
distributions of the number of claims on a car are given in the following table.
Four policies are selected at random.
Calculate the probability that exactly one of the four policies has the same number of
claims on both covered cars.
(A) 0.104
(B) 0.250
(C) 0.285
(D) 0.417
(E) 0.739