|A certain disease has a prevalence of one percent in a population. A test, Test A, has a false positive rate of .2 and a false negative rate of .01. This test is a screening test. Test B has a false positive rate of .02 and a false negative rate of .15. This test is a conﬁrmatory test. The false positive and false negative rates of the tests depend only on whether or not a person has the disease. Test B is only given to a patient if the patient tests positive on Test A. What is the probability that a person who tests positive on Test B has the disease?