問題詳情
130. This year, a medical insurance policyholder has probability 0.70 of having no emergency room visits, 0.85 of having no hospital stays, and 0.61 of having neither emergency room visits nor hospital stays
Calculate the probability that the policyholder has at least one emergency room visit and at least one hospital stay this year.
(A) 0.045
(B) 0.060
(C) 0.390
(D) 0.667
(E) 0.840
參考答案
答案:B
統計:A:0,B:0,C:0,D:0,E:0
難度:計算中