Question: A random variable X has range RX = {0, 1, 2,}, and suppose that Then the expected value of X equals (a) 13 (b) 3

A random variable X has range RX = {0, 1, 2,…}, and suppose thatP(X > k): k= 0,1,2,...

Then the expected value of X equals

(a) 1∕3

(b) 3

(c) 3∕2 (d)2∕3 (e)1∕2

P(X > k): k= 0,1,2,...

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