Difference between revisions of "Population variance"
From OPOSSEM
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Revision as of 18:41, 16 June 2011
<math>\sigma^2 = \frac{\sum_{i=1}^N{(Y-\bar{Y})^2}}{N}</math>
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<math>\sigma^2 = \frac{\sum_{i=1}^N{(Y-\bar{Y})^2}}{N}</math>