A recent national study showed that approximately 30 of, Ask an Expert

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A recent national study showed that approximately 30% of college students binge-drink. Let x equal the number of students in a random sample size of n=12 who binge drink. Find the probability that

a) X is at most 2

b) X is at least 11

c) X is equal to 4

d) Give the mean, variance, and standard deviation of X.

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