Question: A random variable x has possible values {-1, 0, 1}. All values of x are equally likely (i.e. P(-1) = P(0) = P(1) = 1/3).

A random variable x has possible values {-1, 0, 1}. All

values of x are equally likely (i.e. P(-1) = P(0) = P(1)

A random variable x has possible values {-1, 0, 1}. All values of x are equally likely (i.e. P(-1) = P(0) = P(1) = 1/3). Find the mean of x a) 0. b) 1/3. c) 1. d) I do not know

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