試題詳解

148. A car is new at the beginning of a calendar year. The time, in years, before the car experiences its first failure is exponentially distributed with mean 2.

Calculate the probability that the car experiences its first failure in the last quarter of some calendar year.
(A) 0.081
(B) 0.088
(C) 0.102
(D) 0.205
(E) 0.250