If a random variable X assumes only positive integral values, with the probabil

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If a random variable X assumes only positive integral values, with the probability P(X = x) = 2/3 (1/3)x-1, x = 1,2,3,... then E(X) is

Options:

A . 2/9

B . 2/3

C . 1

D . 3/2

Answer: Option D

-NA-

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