A multivariate random variable (X1, X2, X3) takes values in the following set S with equal...

A multivariate random variable (X1, X2, X3) takes values in the following set S with equal probability: S = {(1, 1, 1),(3, 0, 0),(0, 3, 0),(0, 0, 3),(1, 2, 3)}.

a) Compute E[X1|X2 = i], for each i = 0, 1, 2, 3, and E[X1].

b) Compute the marginal p.m.f. of Xi for each i = 1, 2, 3.

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orchestra answered 1 year ago

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