Random Variable Expectation (Jee Mains) | ExamDuo
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Random Variables and Distributions
Medium
Random Variable Expectation
Let a random variable X take values 0, 1, 2, 3 with P(X = 0) = P(X = 1) = p, P(X = 2) = P(X = 3) and E(X
2
) = 2E(X). Then the value of 8p – 1 is :
SELECT ONE OPTION
A
0
B
2
C
1
D
3
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