SOLUTION: Assume that when adults with smartphones are randomly​ selected, 56​% use them in meetings or classes. If 7 adult smartphone users are randomly​ selected, find the probabilit

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Question 1149648: Assume that when adults with smartphones are randomly​ selected, 56​% use them in meetings or classes. If 7 adult smartphone users are randomly​ selected, find the probability that exactly 5 of them use their smartphones in meetings or classes
Answer by ikleyn(52887) About Me  (Show Source):
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    P = C%5B7%5D%5E5%2A0.56%5E5%2A%281-0.56%29%5E%287-5%29 = %28%287%2A6%29%2F2%29%2A0.56%5E5%2A0.44%5E2.


The binomial distribution.


Use your calculator.