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26 July, 03:32

Consider the following binomial experiment: a study in a certain community showed that 6% of the people suffer from insomnia. if there are 10,200 people in this community, what is the standard deviation of the number of people who suffer from insomnia?

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  1. 26 July, 04:02
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    To determine the standard deviation of the number of people who suffer from insomnia, you need to use the following formula:

    = sqr of npq

    = √10,200 people in the community x 0.6 people who suffer from insomnia x 0.91 = ?

    = √10,200 x 0.6 x 0.91 = √55.143 = 7.43

    = 7.43
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