Question: 1. The probability that a man with prostate cancer will test positive with the prostate specific antigen (PSA) test is 0.91. If 500 men with

1. The probability that a man with prostate cancer will test positive with the prostate specific antigen (PSA) test is 0.91. If 500 men with prostate cancer are tested, how many would we expect to test positive?
2. A company selling substandard drugs to developing countries sold 2,000,000 capsules with 60,000 of them empty. If a person gets 100 randomly chosen capsules from this company, what is the expected number of empty capsules that this person will get?

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