Assume that when adults with smartphones are randomly selected, 47% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that exactly 4 of them use their smartphones in meetings or classes. The probability is_____.
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In this case, we are dealing with a binomial distribution because we have a fixed number of trials (9 adult smartphone users), each with two possible outcomes (using or not using smartphones in meetings or classes), and the probability of success (using Show more…
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