Probability that the subject tested negative

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Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 148 subjects with positive test results, there are 20 false positive results; among 153 negative results, there are 44 false negative results. If one of the test subjects is randomly selected, find the probability that the subject tested negative or did not use marijuana.

Reference no: EM131227000

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