1. The problem statement, all variables and given/known data X & Y are independent r.v.s with uniform distribution between 0 and 1. Z= X/(1+Y)^2 find E[Z]. 2. Relevant equations 3. The attempt at a solution Here is what I did. E[Z]= E[X]*E[1/(1+Y)^2] E[X]=1/2 E[1/(1+Y)^2]=? I think that once I know the distribution of (1+Y)^(-2), I'll be able to find the answer. Is it 1/(1+Y)^2~ U(1,2) ?