# Question: Let the joint pmf f x y of X and Y

Let the joint pmf f(x, y) of X and Y be given by the following:

(x, y) f(x, y)

(1, 1) ....... 3/8

(2, 1) ....... 1/8

(1, 2) ....... 1/8

(2, 2) ....... 3/8

Find the two conditional probability mass functions and the corresponding means and variances.

(x, y) f(x, y)

(1, 1) ....... 3/8

(2, 1) ....... 1/8

(1, 2) ....... 1/8

(2, 2) ....... 3/8

Find the two conditional probability mass functions and the corresponding means and variances.

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