Question: For the random variable X, we know that P(X = 1) = 0.3, P(X = 2) = 0.2, P(X = 5) = 0.5. Then, the

For the random variable X, we know that P(X = 1) = 0.3, P(X = 2) = 0.2, P(X = 5) = 0.5.

Then, the expected value of X equals

(a) 8∕3

(b) 2

(c) 1

(d) 3.2

(e) 2.7

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