Name: 8. a) Suppose that P(A) = 0.35, P(B) =0.4, and P(A n B) = 0.12. Are A and B independent events? Justify mathematically using the formulas taught to explain your answer. (2 marks) b) Suppose that P(Q) = 0.720, P(R) = 0.650,and P(Q U R) = 0.97 Are Q and R mutually (2 marks) exclusive events? Justify mathematically using the formulas taught to explain your