Let Y1 and Y2 be random variables with joint density function (yỉ + ), 0 < y1 < 1,0 < y2 < 2, f(y1, 42) elsewhere a) Find marginal density functions. Are Y1 and Y2 independent? b) Find P(0 < Y, < 0.3, –2 < Y2 < 1). c) Find P(0.6

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