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Assume that when adults with smartphones are randomly​ selected, 57​% use them in meetings or classes....

Assume that when adults with smartphones are randomly​ selected, 57​% use them in meetings or classes. If 13 adult smartphone users are randomly​ selected, find the probability that fewer than 4 of them use their smartphones in meetings or classes. The probability is nothing. ​(Type an integer or decimal rounded to four decimal places as​ needed.) I am needing help with this problem.

Math   Statistics-And-Probability   
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Answer #1

We know that Binomial distribution is discrete distribution. And we have asked to find fewer than 4 hence X will take values as 0,1,2 and 3.

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