In a random sample of 250 college students, 175 of them own a smartphone. Estimate the probability

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In a random sample of 250 college students, 175 of them own a smartphone. Estimate the probability that a college student chosen at random owns a smartphone. If actually 75% of all college students own a smartphone, what is the probability that, in a random survey of 250 students, at most 175 of them own an a smartphone?
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Finite Mathematics and Its Applications

ISBN: 978-0134768632

12th edition

Authors: Larry J. Goldstein, David I. Schneider, Martha J. Siegel, Steven Hair

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