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The proportion of the college x students (the population) graduating in 4 years or less is...

The proportion of the college x students (the population) graduating in 4 years or less is known to be 38%. If we take a random sample of 100 students of college x, what is the probability that the proportion of students who graduate in 4 years or less in the sample is at least 40%,(?̂≥ 40/100 )=?

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