COVARIANCE

covariance

(noun) (statistics) the mean value of the product of the deviations of two variates from their respective means

Source: WordNet® 3.1


Etymology

Noun

covariance (plural covariances)

(statistics) A statistical measure defined as \(\scriptstyle\operatorname{Cov}(X, Y) = \operatorname{E}((X - \mu) (Y - \nu))\) given two real-valued random variables X and Y, with expected values \(\scriptstyle E(X)\,=\,\mu\) and \(\scriptstyle E(Y)\,=\,\nu\).

(object-oriented programming) The conversion of data types from wider to narrower in certain situations.

Coordinate term: contravariance

Source: Wiktionary



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Word of the Day

16 November 2024

LEAVE

(verb) go and leave behind, either intentionally or by neglect or forgetfulness; “She left a mess when she moved out”; “His good luck finally left him”; “her husband left her after 20 years of marriage”; “she wept thinking she had been left behind”


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