covariance

co·var·i·ance

C c

Definitions of covariance word

noun covariance a measure of the association between two random variables, equal to the expected value of the product of the deviations from the mean of the two variables, and estimated by the sum of products of deviations from the sample mean for associated values of the two variables, divided by the number of sample points. Written as Cov (X, Y) 3
noun covariance a measure of the relationship between two variables whose values are observed at the same time; specif., the average value of the product of the two variables diminished by the product of their average values 3
noun covariance the expectation or mean value of the variable formed by multiplying the differences obtained by subtracting two given variates from their respective means; the product of the standard deviations of two given variates and the coefficient of correlation between them. 1
noun covariance The property of a function of retaining its form when the variables are linearly transformed. 1
noun covariance (statistics) A statistical measure defined as given two real-valued random variables X and Y, with expected values and. 0
noun covariance (computing, programming) The conversion of data types from wider to narrower in certain situations. 0

before 1875

One of the 25% newest English words

First recorded in 1875-80; co- + variance

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adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 73% of English native speakers know the meaning and use the word.

This word is included in each student's vocabulary. Most likely there is at least one movie with this word in the title.

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