1. The problem statement, all variables and given/known data https://www.physicsforums.com/attachments/screen-shot-2017-04-15-at-12-28-52-pm-png.194886/?temp_hash=4939cc24bd25e6adfbe75458bec6d011 [Broken] 2. Relevant equations P(X∈A,Y∈B)=P(X∈A)×P(Y∈B) 3. The attempt at a solution If X and Y are independent then: P(X∈A,Y∈B)=P(X∈A)×P(Y∈B) I am confused how I can find P(X∈A) and P(Y∈B) . I tried doing 0.1 * 0.2 = P(X∈A) and 0.9 = (P(Y∈B)) and multiply those to get .018, but that is inccorect.