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A measure of deviation from the mean in a sample or population
a specifically defined mathematical measure of variability in a data set or population. The variance is the standard deviation squared. Variance should not be confused with variability, which refers to the characteristic of a process to take on different values when it is repeated.
The Lean Institute - University of Oklahoma
A measure of the spread of a probability distribution. The square of the standard deviation. See statistics texts.
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Homogeneity Of Variance
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