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. Informally, it measures how far a
set ...

www.statisticshowto.com/probability-and-statistics/variance

**Variance** measures how far a data set is spread out. Definition, examples of
**variance**. Step by step examples and videos; statistics made simple!

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 ...

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 ...

www.khanacademy.org/math/ap-statistics/summarizing-quantitative-data-ap/measuring-spread-quantitative/v/sample-variance

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

www.sciencebuddies.org/science-fair-projects/science-fair/variance-and-standard-deviation

In order to write the equation that defines the **variance**, it is simplest to use the
summation operator, Σ. The summation operator is just a shorthand way to write,
...

www.merriam-webster.com/dictionary/variance

Define **variance**: the fact, quality, or state of being variable or variant : difference,
variation — **variance** in a sentence.

www.dictionary.com/browse/variance

**Variance** definition, the state, quality, or fact of being variable, divergent, different,
or anomalous. See more.

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 ...