1. Given A, B and C are events with P(A)= 0.33, P(B)=0.25, P(C)=0.5, P(ANB)=0.17, P(ANC)= 0.11, P(BN C)=0.15, and P(AN BNC)=0.02, find P(A U BU C). To input n, you can either use the keyboard Ctrl+i (from Ctrl intersection) or click n button; to input u, you can either use the keyboard Ctrl+u (from Ctrl union) or click the u button.