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    Joint Density

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    The joint density of X and Y is given by

    f(x,y)= {xe to the power -(z+y) x>0, y>0
    0 otherwise.

    Are X and Y independent? What if f(x,y) were given by

    f(x,y)= {2 0<x<y, 0<y<1
    0 otherwise.

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    https://brainmass.com/statistics/descriptive-statistics/joint-density-28252

    Solution Summary

    The joint density of X and Y is given by

    f(x,y)= {xe to the power -(z+y) x>0, y>0
    0 otherwise.

    Are X and Y independent? What if f(x,y) were given by

    f(x,y)= {2 0<x<y, 0<y<1
    0 otherwise.

    $2.49

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