Variance - Wikipedia, the free encyclopedia
... theory and statistics, the variance of a random variable, probability ... The unit of variance is the square of the unit of the original variable. ...
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Variance -- from Wolfram MathWorld
... population mean , the population variance , commonly also written , is defined as ... needed in interpreting as a variance, since the symbol is also ...
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Standard Deviation and Variance: Common Measures of Variability
This is part of HyperStat Online, a free online statistics book. ... The variance and the closely-related standard deviation are measures of how ...
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Sample Variance -- from Wolfram MathWorld
To estimate the population variance from a sample of elements with a priori ... central moments , then the expected value of the observed sample variance is ...
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variance -- Britannica Online Encyclopedia
Britannica online encyclopedia article on variance: in statistics, the square of ... Get the definition of variance from the Merriam-Webster Online Dictionary ...
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Variance swap - Wikipedia, the free encyclopedia
A variance swap is an over-the-counter financial derivative that allows one to ... an amount based upon the realized variance of the price changes of the ...
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Variance: Definition and Much More from Answers.com
Variance A measure of the dispersion of a set of data points around their ... to calculate a metric that improves on simple variance. ... Dictionary: Variance ...
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animated definition
... differences between group means in an analysis of variance setting. ... Variance Inflation ... of the residual variance (for the correlation transformed ...
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PlanetMath: variance
one-pass algorithm to compute sample variance (Algorithm) by stevecheng ... This is version 9 of variance, born on 2001-10-26, modified 2007-07-08. ...
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Reference for Variance - Search.com
Variance ... theory and statistics, the variance of a random variable, probability ... The unit of variance is the square of the unit of the original variable. ...
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