Question

If two random variables have the joint density

f(x1,x2)=x1x2 for 0 13 years ago

Answer 1

\[\int\limits_{0}^{1}\int\limits_{0}^{2}x _{1}x_{2}dx_{1}dx_{2} \]

Answer 2

^this is the integral a wrote above.

Answer 3

My book is saying that the answer is 1/4 but I got 1/2