Question: 24
(Choose 1 answer)
(See picture)
A. 1.25
B. 2.5
C. 3
D. 3.25
E. None of the other choices is correct
The cumulative distribution function of the ran-
dom variable X is defined by
F(x)=
1-e-4x/5
, x < 0
, x≥ 0.
What is the mean value of X?
