Mathematics, 16.06.2020 20:57 EllaSue

Firms are increasingly asking applicants to submit to drug tests. 10% of all applicants are drug users. Suppose that drug tests that are used to identify
whether a randomly chosen person is a drug user or not are accurate only 98%
of the time. What is the probability that a person who has tested positive for
drug use is not really a drug user?

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