What does variance mean?

Definitions for varianceˈvɛər i əns

Here are all the possible meanings and translations of the word variance.

Princeton's WordNet

  1. discrepancy, variance, variant(noun)

    an event that departs from expectations

  2. division, variance(noun)

    discord that splits a group

  3. variance(noun)

    the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value

  4. discrepancy, disagreement, divergence, variance(noun)

    a difference between conflicting facts or claims or opinions

    "a growing divergence of opinion"

  5. variability, variableness, variance(noun)

    the quality of being subject to variation

  6. variance(noun)

    an official dispensation to act contrary to a rule or regulation (typically a building regulation)

    "a zoning variance"

  7. variation, variance(noun)

    an activity that varies from a norm or standard

    "any variation in his routine was immediately reported"


  1. Variance(n.)

    (Statistics) The expected value of the square of the deviation from the mean of a randomly distributed variable; the second moment about the mean. This is also the square of the standard deviation.

  2. Origin: [L. variantia.]


  1. variance(Noun)

    The act of varying or the state of being variable

  2. variance(Noun)

    A difference between what is expected and what happens

  3. variance(Noun)

    The state of differing or being in conflict

  4. variance(Noun)

    A discrepancy, especially between two legal documents

  5. variance(Noun)

    The second central moment in probability

  6. Origin: From variance.

Webster Dictionary

  1. Variance(noun)

    the quality or state of being variant; change of condition; variation

  2. Variance(noun)

    difference that produce dispute or controversy; disagreement; dissension; discord; dispute; quarrel

  3. Variance(noun)

    a disagreement or difference between two parts of the same legal proceeding, which, to be effectual, ought to agree, -- as between the writ and the declaration, or between the allegation and the proof

  4. Origin: [L. variantia.]


  1. Variance

    In probability theory and statistics, the variance is a measure of how far a set of numbers is spread out. It is one of several descriptors of a probability distribution, describing how far the numbers lie from the mean. In particular, the variance is one of the moments of a distribution. In that context, it forms part of a systematic approach to distinguishing between probability distributions. While other such approaches have been developed, those based on moments are advantageous in terms of mathematical and computational simplicity. The variance is a parameter describing in part either the actual probability distribution of an observed population of numbers, or the theoretical probability distribution of a sample of numbers. In the latter case a sample of data from such a distribution can be used to construct an estimate of its variance: in the simplest cases this estimate can be the sample variance.

Chambers 20th Century Dictionary

  1. Variance

    vā′ri-ans, n. state of being varied: an alteration: a change of condition: (law) a discrepancy: difference that arises from, or produces, dispute.—n. Vā′riant, a different form of the same original word: a different reading, e.g. in a manuscript.—adj. diverse, variable, inconstant.—At variance, in disagreement.


  1. Chaldean Numerology

    The numerical value of variance in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of variance in Pythagorean Numerology is: 1

Sample Sentences & Example Usage

  1. Roger Noll:

    In general, mega events usually cost more than they bring in for a city government, but there is lots of variance.

  2. Roger Noll:

    Frost belt cities do better because few people visit them in the winter, in general, mega events usually cost more than they bring in for a city government, but there is lots of variance.

  3. Richard Achiro:

    Men are using the supplements in a way that is risky both to their physical health and their health in terms of relationships and their own emotional wellbeing, it is an expression, or variance, of eating disorder behavior in these men.

  4. Laurence Wormald:

    The illusion of being able to permanently depress the risk on equities through smart-beta or minimum-variance strategies has been very, very appealing, and a lot of money has piled in, but that delusion cannot be kept up because it's based on a strategy that doesn't work when the crowd arrives.

  5. Arko Ghosh:

    We measured people's brain activity using a bunch of electrodes on the scalp and what these maps indicate is essentially how much of the variance between people we could explain by just looking at the phone logs, so how much brain activity can be explained by looking at people's history of use on the phones alone.

Images & Illustrations of variance

  1. variancevariancevariance

Translations for variance

From our Multilingual Translation Dictionary

  • rozptylCzech
  • VarianzGerman
  • varianzaSpanish
  • bariantzaBasque
  • erimielisyys, varianssi, eripuraisuusFinnish
  • varianceFrench
  • varianzaItalian
  • 分散Japanese
  • variantie, onverwacht, afwijkend, contradictorisch, tegenspraakDutch
  • wariancjaPolish
  • diferență, contradicție, discrepanță, variație, variereRomanian
  • расхождение, противоречие, разногласие, дисперсия, несоответствие, отклоне́ниеRussian

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