Discrete Random Variable Expected Value (Jee Ma… | ExamDuo
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Random Variables and Distributions
Medium
Discrete Random Variable Expected Value
Let X be a discrete random variable. The probability distribution of X is given below
X
30
10
−10
P(X)
1
5
A
B
and E(X) = 4, then the value of AB is equal to
SELECT ONE OPTION
A
3
10
B
2
15
C
1
15
D
3
20
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