Re: PDF problem

Posted by Dreyfus on Feb 01, 2014; 11:21am
URL: http://discussion-forum.276.s1.nabble.com/PDF-problem-tp7584616p7584620.html



F(x,y) is the joint cumulative distribution
I m getting joint probability density as f(x,y)= e^-(x+y) for x>0, y>0
                               0 elsewhere
Also P(X+Y>3) = 4e^-3
Please help as the answer is not matching up ?