問題詳情

302. The number of automobile accidents on any day in a city has a Poisson distribution with mean 4. The number of accidents on a given day is independent of the number of accidents on any other day.

Calculate the probability that at most one accident occurs in a three-day period.
(A)


(B)


(C)


(D)


(E)

參考答案

答案:A

統計:A:0,B:0,C:0,D:0,E:1

難度:計算中