yazmainerabon7 yazmainerabon7

27-07-2020
Mathematics

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According to a commercial, 4 out of 5 dentist recommend a certain brand of toothpaste. Suppose There are 120 dentist in your area. What is the expected number of dentist who recommend the brand? What is the standard deviation?

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vaibhavshukla02 vaibhavshukla02

27-07-2020

4/5 recommend, so about 4/5(120) = 96 doctors recommend the brand.

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