SOLUTION: Assume that when adults with smartphones are randomly selected, 42% use them in meetings or classes. If 5 adult smartphone users are randomly selected, find the probabilit
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Question 1142945: Assume that when adults with smartphones are randomly selected, 42% use them in meetings or classes. If 5 adult smartphone users are randomly selected, find the probability that at least 2 of them use their smartphones in meetings or classes. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! find probability only 1 or 0 use them and subtract that value from 1
for 0, it is .58^5=0.0656
for 1 it is 5*.58^4*.42=0.2376
That sum is 0.3032
So at least 2 is 1-0.3032=0.6968
