Ten percent of adults say oatmeal raisin is their favorite, Ask an Expert

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Ten percent of adults say oatmeal raisin is their favorite cookie. You randomly select 12 adults and ask each to name his or her favorite cookie. Find the probability that the number who say oatmeal is their favorite cookie is (a) exactly four, (b) at least four, and (c) less than four.

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Statistics and Probability, Statistics

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