Variance
Revision as of 18:16, 3 March 2022 by Orange quail 9 (talk | contribs)
The variance of a data set is a measure of how "spread out" the data points are in general.
Formula
Population
For a dataset with mean the formula for variance if is a population is Additionally, where is the population standard deviation.
Sample
Because of Bessel's correction the variance if is a sample is calculated according to the slightly different formula
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