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Q.15

Expert-verifiedFound in: Page 428

Book edition
OER 2018

Author(s)
Barbara Illowsky, Susan Dean

Pages
902 pages

ISBN
9781938168208

Find the percentage of sums between $1.5$ standard deviations below the mean of the sums and one standard deviation above the mean of the sums.

The percentage of sums is $77.45\%$

$1.5$ standard deviations below the mean of the sums and one standard deviation above the mean of the sums.

The standard deviation is a measurement of a set of values' variation or dispersion. A low standard deviation implies that the values are close to the set's mean whereas a high standard deviation shows that the values are spread out over a larger range.

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