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Let X be a random variable with the pmf p(x) which is positive at x=1;0;1, and...

Let X be a random variable with the pmf p(x) which is positive at x=1;0;1, and zero elsewhere. If E(X^3) = 0 andE(X^2) =p(0),what is p(1)?

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Answer #1

You have written that x takes the values 1,0,1 but that is not possible. 1 cannot occur twice. It should be -1,0,1. So i Have provided the solution accordingly

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