7. Suppose X and Y are random variables with joint density S0.06 e-(0.3x+0.2y) if x > 0, y 2 0 otherwise function f(x,y) = (a) Verify that f is indeed a joint density function. (b) Find the probabilities: (i) P(Y > 1), (ii) P(X < 2,Y < 4). (c) Find the expected values of X and Y.

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A:

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A:

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Q: What is AC? 4 D

A: Explanation and solutions is given below....