Asked by oof

a drug trial is testing the effectiveness of two drugs If 30 patients are given Drug A, 10 patients are given Drug B, and 90 patients are given a placebo, what is the probability that a patient will NOT be given a placebo?
A. 4/13***
B. 3/13
C. 9/13
D. 1/13
Answered by Anonymous2
30 + 10 + 90 = 130 patients total

30 + 10 = 40 patients who ARE given a drug

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<b>simplify 40/130 for your answer</b>

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Yes, you are correct.
Answered by oof
okay, thank you.
Answered by Anonymous2
Happy to help!
Answered by mira
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?
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