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enot [183]
2 years ago
8

Assume that when adults with smartphones are randomly selected, 57% use them in meetings or classes. If 10 adult smartphone user

s are randomly selected, find
the probability that at least 5 of them use their smartphones in meetings or classes.
The probability is
(Round to four decimal places as needed
SAT
1 answer:
blsea [12.9K]2 years ago
3 0

The probability that at least 5 of them use their smartphones in meetings or classes will be 0.34.

<h3>What is probability?</h3>

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

The number of combinations of 5 out of 10:

^{10}C_4=\dfrac{10!}{5!(10-5)!}=\dfrac{10!}{5!\times 5!}\\\\\\^{10}C_4=\dfrac{10\times 9\times 8\times 7\times 6}{5\times 4\times 3\times 2}\\\\\\^{10}C_4=252

The Success factor is:

57% = 0.57

The failure factor is:

(100 - 57)%= 43%= 0.43

So the Probability will be :

0.57⁵  x  0.43⁵  x   252  ≈   0.34

To know more about probability follow

brainly.com/question/24756209

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<h2>What is the correct function of this group?</h2>

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Note that The function is that they help in looking for Missing and  Exploited Children  and thus  they fasten the process of looking for or the identification of missing children and also their  reunification. -

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