5.1.2 WP Show that the following function satisfies the prope ties of a joint probability mass function. y fxy(x, y) -1.0 -2 1/8 -0.5 -1 1/4 0.5 1 1/2 1.0 2 1/8 Determine the following: а. Р(Х <0.5, Y < 1.5) с. Р(Ү < 1.5) e. Е(X), Е(Y), VIX), V(Y) b. Р(X < 0.5) d. P(X > 0.25, Y < 4.5) f. Marginal probability distribution of X

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