# Joint Density

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.

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