Question

Winter 2020 Quiz 2 1) Three machines M1, Ma and Ma produce respectively 25, 35 and 40 percent of the items in a factory. It is known that • 3 percent of the items M makes are defective, • 2 percent of the items M2 makes are defective, and • 5 percent of the items Ma makes are defective. (a) What is the probability that a randomly selected item came from M2? (b) Find the probability that a randomly selected item is defective. A Find the probability that a randomly selected item came from M2 given that it is defective. ue dins are heads