John went to see the doctor about a severe headache

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Questions: John went to see the doctor about a severe headache. The doctor selected John at random to have a blood test for swine flu, which is suspected to affect 1 in 5,000 people in this country. The test is 99% accurate, in the sense that the probability of a false positive is 1%. The probability of a false negative is zero. John's test came back positive. What is the probability that John has swine flu?

Reference no: EM131435513

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John went to see the doctor about a severe headache : John went to see the doctor about a severe headache. The doctor selected John at random to have a blood test for swine flu, which is suspected to affect 1 in 5,000 people in this country.
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