Let X1 and X2 be two independent exponentially distributed random variables with means 0.5

Q. Let X1 and X2 be two independent exponentially distributed random variables with means 0.5 and 0.25, respectively. Then Y = min (X1, X2) is

A. exponentially distributed with mean 1⁄6

B. exponentially distributed with mean 2

C. normally distributed with mean 3⁄4

D. normally distributed with mean 1⁄6

Ans: exponentially distributed with mean 1⁄6