MEANING
The positive square root of variance, measuring spread in the same units as the observations.
Use it for
Name spread in the original units of the data.Report how widely observations vary around their mean.
Words that belong together
- sample standard deviation
- population standard deviation
- standard deviation of scores
On the page
The standard deviation was small, though one outlier sat far beyond the rest.
Nearby words
Word forms
- Base
- standard deviation
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Usage notes
It is sensitive to extreme values and is not itself a measure of uncertainty in a sample mean.
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