Assume that when adults with smartphones are randomly selected, 39% use them in meetings or classes. If 20 adult smartphone users are randomly selected, find the probability that exactly 12 of them use their smartphones in meetings or classes. The probability is (Round to four decimal places as needed.)
Assume that when adults with smartphones are randomly selected, 39% use them in meetings or classes. If 20 adult smartphone users are randomly selected, find the probability that exactly 12 of them use their smartphones in meetings or classes. The probability is (Round to four decimal places as needed.)
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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Transcribed Image Text:Assume that when adults with smartphones are randomly selected, 39% use them in meetings or classes. If 20 adult smartphone users are randomly selected, find the probability that exactly 12 of them use their smartphones in meetings or
classes
The probability is
(Round to four decimal places as needed.)
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Step 1
Ans# - Given, n =20, P = 39% = 0.39
Find P(x = 12) = ?
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