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A Manufacturer of Headache Medicine Claims It Is 70% Effective

Question 45

Multiple Choice

A manufacturer of headache medicine claims it is 70% effective within a few minutes. That is,out of every 100 users,70 get relief within a few minutes. A group of 12 patients are given the medicine. If the claim is true,what is the probability that eight have relief within a few minutes?


A) 0.001
B) 0.168
C) 0.667
D) 0.231

Correct Answer:

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