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  1. Dictionary
    variance
    /ˈvɛːrɪəns/

    noun

    • 1. the fact or quality of being different, divergent, or inconsistent: "her light tone was at variance with her sudden trembling"
    • 2. an official dispensation from a rule or regulation, typically a building regulation.

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  2. en.wikipedia.org › wiki › VarianceVariance - Wikipedia

    Variance is a measure of dispersion, meaning it is a measure of how far a set of numbers is spread out from their average value. It is the second central moment of a distribution, and the covariance of the random variable with itself, and it is often represented by , , , , or .

  3. www.scribbr.com › statistics › varianceHow to Calculate Variance | Calculator, Analysis & Examples -...

    Jan 18, 2023 · The variance is a measure of variability. It is calculated by taking the average of squared deviations from the mean. Variance tells you the degree of

  4. statisticsbyjim.com › basics › varianceVariance: Definition, Formulas & Calculations - Statistics by Jim

    Variance is a measure of variability in statistics. It assesses the average squared difference between data values and the mean. Unlike some other statistical measures of variability, it incorporates all data points in its calculations by contrasting each value to the mean. When there is no variability in a sample, all values are the same, and ...

  5. www.cuemath.com › data › varianceVariance - Definition, Formula, Examples, Properties

    Variance is a measure of dispersion that is used to check the spread of numbers in a given set of observations with respect to the mean. Understand variance using solved examples.

  6. www.investopedia.com › terms › vWhat Is Variance in Statistics? Definition, Formula, and Example

    Dec 19, 2023 · Variance is a measurement of the spread between numbers in a data set. The variance measures how far each number in the set is from the mean. Variance is calculated by taking the differences ...

  7. dictionary.cambridge.org › dictionary › englishVARIANCE | English meaning - Cambridge Dictionary

    VARIANCE definition: 1. the fact that two or more things are different, or the amount or number by which they are…. Learn more.

  8. www.merriam-webster.com › dictionary › varianceVariance Definition & Meaning - Merriam-Webster

    variance: [noun] the fact, quality, or state of being variable or variant : difference, variation.

  9. brilliant.org › wiki › variance-definitionVariance | Brilliant Math & Science Wiki

    Jun 29, 2024 · Variance is a statistic that is used to measure deviation in a probability distribution. Deviation is the tendency of outcomes to differ from the expected value. Studying variance allows one to quantify how much variability is in a probability distribution. Probability distributions that have outcomes that vary wildly will have a large variance.

  10. www.khanacademy.org › math › statistics-probabilityMeasures of spread: range, variance & standard deviation - Khan...

    Range, variance, and standard deviation all measure the spread or variability of a data set in different ways. The range is easy to calculate—it's the difference between the largest and smallest data points in a set. Standard deviation is the square root of the variance. Standard deviation is a measure of how spread out the data is from its mean. Created by Sal Khan.

  11. dictionary.cambridge.org › us › dictionaryVARIANCE | definition in the Cambridge English Dictionary

    VARIANCE meaning: 1. the fact that two or more things are different, or the amount or number by which they are…. Learn more.