Mathematics, 08.11.2019 23:31, ijohnh14

Let the random variables x and y have joint distribution f(x, y) = (2x + y)/30, x = 1,2 ; y = 1,2,3. a)find the marginal pdf's f1(x) of x and f2(y) of y. b)are x and y independent? justify your answer.

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Let the random variables x and y have joint distribution f(x, y) = (2x + y)/30, x = 1,2 ; y = 1,2,3...