Statistics and Probability Quiz
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PROBABILITY RULES
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A medical screening is done in two stages. First, a person is randomly selected from a group; the probability the person is in the high-risk category is P(A)=0.15. Then, given the person is high-risk, the probability the test result is positive is P(B∣A)=0.80. What is the probability that both events occur, P(A∩B)?
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