Mathematics, 12.04.2021 05:20, Nyasiabaltimore3

Assume that when adults with smartphones are randomly selected, 55% use them in meetings or classes. If 30 adult smartphone users are randomly selected, find the probability that exactly 21 of them use their smartphones in meetings or classes
The probability is
(Round to four decimal places as needed.)

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Assume that when adults with smartphones are randomly selected, 55% use them in meetings or classes....