Use Bayes' rule to find the indicated probability.The incidence of a certain disease in the town of Springwell is 4%. A new test has been developed to diagnose the disease. Using this test, 90% of those who have the disease test positive while 5% of those who do not have the disease test positive ("false positive"). If a person tests positive, what is the probability that he or she actually has the disease?

A. 0.855
B. 0.386
C. 0.429
D. 0.90


Answer: C

Mathematics

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