Question: 14
(Choose 1 answer)
(See picture)
A. O
B. 0.3
C. 0.5
D. 0.8
E. 1
The discrete random variable X has the cumulative
distribution function
0
0.3
if x < 1
if 1≤x<2
F(x)
0.8
if 2x < 4
1
if x ≥ 4
What is the value of the probability mass function of X at 3?
