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A test for a condition has a high probability of false positives, 20%. Its rate of false negatives is 10%. The condition is estimated to
A test for a condition has a high probability of false positives, 20%. Its rate of false negatives is 10%. The condition is estimated to exist in 65% of all patients sent for screening. If the test is positive, what is the chance the patient has the condition? Suppose that the condition is much more rare in the population' say, Pr(condition) = .30. Given the same testing situation, what is Pr(condition|positive)
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