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Mathematics 10 Online
OpenStudy (anonymous):

A drug trial is testing the effectiveness of two drugs. If 50 patients are given Drug A, 20 patients are given Drug B, and 100 patients are given a placebo, what is the probability that a patient will NOT be given a placebo? A. 5/17 B. 10/17 C. 2/17 D. 7/17

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