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the random variable x and y have joint density function given by fx,y={ A(1+x). , 0<=x<=1;0<=y<=3...

the random variable x and y have joint density function given by fx,y={ A(1+x). , 0<=x<=1;0<=y<=3 0 elsewhere 3.1 determine the value of constant A for proper p.d.f ?3.2 find the expected values of X and Y?3.3. obtain the covariance of X and Y?3.4 determine if x and y are statistically independent.

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