Multiple choices 15/50
(Choose 1 answer)
(See picture)
A. 1
B. 08
C. 0.5
D 0
Ε. 0.3
Next
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?
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