Assume that when adults with smartphones are randomly selected, 56 % use them in meetings or...

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Assume that when adults with smartphones are randomly selected, 56 % use them in meetings or...

Assume that when adults with smartphones are randomly selected, 56 % use them in meetings or classes. If 10 adult smartphone users are randomly selected, find the probability that at least 8 of them use their smartphones in meetings or classes.

math Statistics-And-Probability

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Answer 1

Answer #1

Here it is given p=0.56 which is same for all, n=10 is constant, events are independent and only two outcomes

So all the properties of binomial are satisfied

Hence we will use binomial distribution excel formula to find the required probability

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Answer 2

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