(Answered) Question reliability of medical tests a medical test has

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Question: RELIABILITY OF MEDICAL TESTS A medical test has been designed to detect the presence of a certain disease. Among those who have the disease, the probability that the disease will be detected by the test is .95. However, the probability that the test will erroneously indicate the presence of the disease in those who do not actually have it is .04. It is estimated that 4% of the population who take this test have the disease.

a. If the test administered to an individual is positive, what is the probability that the person actually has the disease?

b. If an individual takes the test twice and both times the test is positive, what is the probability that the person actually has the disease? (Assume that the tests are independent.)

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