Question: Use the regression function of Y on X and the marginal PMF of X, which were given in Examples 4.3-8 and 4.3-4, respectively, in order

Use the regression function of Y on X and the marginal PMF of X,

X 0 1 2 x 0 1 2 and HYX(X) 0.2 0.95

which were given in Examples 4.3-8 and 4.3-4, respectively, in order to find E(Y).

X 0 1 2 x 0 1 2 and HYX(X) 0.2 0.95 1.25 Px(x) 0.2 0.5 0.3

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