Standard deviations is Jose’s height from the mean height for 7-year-olds =1
Standard deviations is Jamal’s height from the mean height for 12-year-olds=-1
Concept: In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean of the set, while a high standard deviation indicates that the values are spread out over a wider range.
Using the data on the right to find the distance of each boy’s height from the mean.
Distance from mean: x - μ
Distance of Jose’s height from mean: ✔ 2 in.
Distance of Jamal’s height from mean: ✔ –2.3 in.
Standard deviations is Jose’s height from the mean height for 7-year-olds =1
Standard deviations is Jamal’s height from the mean height for 12-year-olds=-1
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