Mathematics, 14.02.2020 02:05 Aced
All interns for Comcast are required to be tested for drug use. The imperfect test gives positive results (indicating drug use) for 80% of all interns who actually use drugs but also (incorrectly) for 3% of those who do not use drugs. Suppose that only 10% of all of these interns actually use drugs.
If an intern is tested negative, what is the probability that he/she uses drugs?
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All interns for Comcast are required to be tested for drug use. The imperfect test gives positive re...