Question 682694: A manufacturer of headache medicine claims it is 60 percent effective within a few minutes. that is, out of every 100 users 60 get relief within a few minutes. A group of 10 patients are given the medicine. If the claim is true, what is the probability that 3 have relief within a few minutes?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A manufacturer of headache medicine claims it is 60 percent effective within a few minutes. that is, out of every 100 users 60 get relief within a few minutes. A group of 10 patients are given the medicine. If the claim is true, what is the probability that 3 have relief within a few minutes?
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Binomial Problem with n = 10 ; p(effective) = 0.6
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P(x = 3) = 10C3*0.6^3*0.4^7 = 0.0425
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Cheers,
Stan H.
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