Question

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.

Short answer

The percentage of sums is $77.45\%$

Step-by-step solution

Given Information

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

Explanation

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.