Elementary Middle High total Has a pet 20 35 75 130 Does not have a pet 20 30 45 95 total 40 65 120 225 (a) Find P(Student has a pet) (b) Find P(Student has a pet and they are in elementary school) (c) Find P(Student is in high school or they have a pet) (d) Let A = student is in middle school and B = student does not have a pet. Find P (A' ) P(A m B), P(A' r1 B), P(A u B), and P(A' u B')