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    A manufacturer of headache medicine claims it is 70 percent 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 8 have relief within a few minutes?

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

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    https://brainmass.com/statistics/probability/binomial-random-variable-278741

    Solution Summary

    The solution provides step by step method for the calculation of probability based on binomial random variable. Formula for the calculation and Interpretations of the results are also included.

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