Mathematics, 24.02.2020 16:45 jhernandezvaldez142

A study considered risk factors for HIV infection among intravenous drug users [11]. It found that 40% of users who had ≤ 100 injections per month (light users) and 55% of users who had > 100 injections per month (heavy users) were HIV positive. 4.54 What is the probability that exactly 3 of 5 light users are HIV positive?

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A study considered risk factors for HIV infection among intravenous drug users [11]. It found that 4...