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