Definitions for varianceˈvɛər i əns

This page provides all possible meanings and translations of the word variance

Random House Webster's College Dictionary

var•i•anceˈvɛər i əns(n.)

  1. the state of being variable or different.

  2. an instance of varying.

  3. Statistics. the square of the standard deviation.

    Category: Statistics

  4. the number of degrees of freedom of a physical system.

    Category: Physics

  5. Law. a discrepancy, as between two sworn statements. a departure from the cause of action originally stated in a legal complaint.

    Category: Law

  6. a permit to do something normally regulated by law.

    Category: Government

  7. a disagreement or dispute.

Idioms for variance:

  1. at variance, in a state of disagreement.

    Category: Idiom

Origin of variance:

1300–50; ME < L

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"

Wiktionary

  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

Freebase

  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.

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