1/1000 people have a certain disease. There is a test that is 98% correct to detect if you have the disease. If you don't have the disease, the error rate (False positive rate) is 1%. If someone who takes the test tests positive, what is the probability they have the disease?
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Out of these 100,000 people, 100 (1/1000 * 100,000) have the disease. The test will correctly identify 98 of these 100 people as having the disease (98% accuracy). Out of the 99,900 people who do not have the disease, the test will incorrectly identify 999 Show more…
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