Variance/Definition: Difference between revisions

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A statistical measure of the variability of a quantity (defined as the mean of the squares of the deviation of its values from their mean, and expressed mathematically as Var(x)).
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A statistical measure of the variability of a random quantity (defined as the mean squared deviation from the mean value).

Latest revision as of 18:21, 29 June 2009

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Variance [r]:

A statistical measure of the variability of a random quantity (defined as the mean squared deviation from the mean value).