Mathematics, 16.02.2020 06:20 sophiaa23
Assume that when adults with smartphones are randomly selected, 39% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that exactly 7 of them use their smartphones in meetings or classes
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the probability of not using the smartphone is 
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Assume that when adults with smartphones are randomly selected, 39% use them in meetings or classes....
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