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The joint probability density function for two random variables,XandY, is given by f X,Y (x,y)=a(x+y)forx,y[0,1]. whereais a constant. Find the value ofa.

The joint probability density function for two random variables,XandY, is given by

f_X,Y(x,y)=a(x+y)forx,y[0,1]. whereais a constant.

Find the value ofa.

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