GATE XE (Engineering Sciences) 2016 - Question 18

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Section: Engineering Mathematics | Type: NAT | Marks: 2

A diagnostic test for a certain disease is 90% accurate. That is, the probability of a person having (respectively, not having) the disease tested positive (respectively, negative) is 0.9. Fifty percent of the population has the disease. What is the probability that a randomly chosen person has the disease given that the person tested negative?

Answer: 0.099 to 0.101

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