Around 5 percent of patients actually have mononucleosis p(M) = .05. 90 percent of patients with mono complain of a sore throat p(S|M) = .9 but 30 percent of those without mono also complain of a sore throat p(S|M’) = .3. Given that a patient complains of a sore throat, what is the probability that she has mono p(M|S)?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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Around 5 percent of patients actually have mononucleosis p(M) = .05. 90 percent of patients with mono complain of a sore throat p(S|M) = .9 but 30 percent of those without mono also complain of a sore throat p(S|M’) = .3. Given that a patient complains of a sore throat, what is the probability that she has mono p(M|S)?  

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