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## Variance

en.wikipedia.org/wiki/Variance

In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its mean, and it informally measures how far a ...

## Standard Deviation and Variance - Math is Fun

www.mathsisfun.com/data/standard-deviation.html

Standard Deviation and Variance. Deviation just means how far from the normal. Standard Deviation. The Standard Deviation is a measure of how spread out ...

## Variance -- from Wolfram MathWorld

mathworld.wolfram.com/Variance.html

The variance is therefore equal to the second central moment mu_2 . Note that some care is needed in interpreting sigma^2 as a variance, since the symbol ...

## Standard Deviation and Variance - David Lane

davidmlane.com/hyperstat/A16252.html

The variance and the closely-related standard deviation are measures of how spread out a distribution is. In other words, they are measures of variability.

## Variance Definition | Investopedia

www.investopedia.com/terms/v/variance.asp

The spread between numbers in a data set, measuring Variance is calculated by taking the differences between each number and the mean, squaring the ...

## Sample variance | Variance and standard deviation | Khan Academy

Thinking about how we can estimate the variance of a population by looking at the data in a sample.

## Variance | Variance and standard deviation | Descriptive statistics ...

Practice calculating both sample and population variances.

## Statistical Variance - A Measure of Data Distribution - Explorable.com

explorable.com/statistical-variance

Statistical variance gives a measure of how the data distributes itself about the mean or expected value.

## Variance Calculator

www.alcula.com/calculators/statistics/variance/

Online calculator to compute the variance from a set of observations from a population or a sample.

## Variance | Definition of Variance by Merriam-Webster

www.merriam-webster.com/dictionary/variance

an amount of difference or change. law : an official decision or document that allows someone to do something that is not usually allowed by the rules. Source:  ...

var·i·ance
[vair-ee-uhns]
NOUN
1.
the state, quality, or fact of being variable, divergent, different, or anomalous.
2.
an instance of varying; difference; discrepancy.
3.
Statistics. the square of the standard deviation.
4.
Physics, Chemistry. the number of degrees of freedom of a system.
5.
an official permit to do something normally forbidden by regulations, especially by building in a way or for a purpose normally forbidden by a zoning law or a building code.
Source: Dictionary.com
variance | Define variance at Dictionary.com
dictionary.reference.com/browse/variance
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Dunwoody Zoning Board reviews several variance requests
Atlanta Journal And Constitution · May 3 8:45 AM