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4. Suppose 50 drug test results are given from people who use drugs (see table below): If 2 of the 50 subjects are randomly selected

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4. Suppose 50 drug test results are given from people who use drugs (see table below): If 2 of the 50 subjects are randomly selected without replacement, find the probability that the first person tested positive and the second person tested negative. Positive Test Results: 30 Negative Test Results: 20 Total Results: 50

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