- 1 Let The Joint Pmf Of X And Y Be Defined By X Y F X Y 32 X 1 2 Y 1 2 3 4 2 A Find Fx X The Marginal Pm 1 (71.01 KiB) Viewed 54 times
1. Let the joint pmf of X and Y be defined by x + y f(x,y) = 32 x = 1,2, y = 1,2,3,4 2 = (a) Find fx(x), the marginal pm
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1. Let the joint pmf of X and Y be defined by x + y f(x,y) = 32 x = 1,2, y = 1,2,3,4 2 = (a) Find fx(x), the marginal pm
1. Let the joint pmf of X and Y be defined by x + y f(x,y) = 32 x = 1,2, y = 1,2,3,4 2 = (a) Find fx(x), the marginal pmf of X. (b) Find fy(y), the marginal pmf of Y. (c) Find P(X > Y). (d) Find P(Y = 2X). (e) Find P(X + Y = 3). (f) Find P(X < 3 – Y). (g) Are X and Y independent or dependent? Why or why not? (h) Find the means and the variances of X and Y. (i) Find the correlation coefficient.