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According to NIH, approximately 85% of Americans eighteen years of age or older have drank alcohol at some point in their lifetime. If a random

According to NIH, approximately 85% of Americans eighteen years of age or older have drank alcohol at

some

point in their lifetime. If a random

sample of 15 Americans at least eighteen years of age is formed,

a. what's the likelihood exactly 9 of them have drank alcohol?

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