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A test for tuberculosis was given to 1000 subjects, 8% of whom were known to have tuberculosis. For the subjects who had tuberculosis, the test indicated tuberculosis in 90% of the subjects, was inconclusive for 7%, and negative for 3%. For the subjects who did not have tuberculosis, the test indicated tuberculosis in 5%, was inconclusive for 10%, and was negative for the remaining 85%. What is the probability of a randomly selected person having tuberculosis given that the test indicates tuberculosis

 Feb 18, 2020
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P[tuberculosis|positive test]=P[positive test|tuberculosis]P[tuberculosis]P[positive test]=0.90.080.90.08+0.050.920.939948

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 Feb 19, 2020

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