Definition of covariance in English:


Line breaks: co|vari¦ance
Pronunciation: /kəʊˈvɛːrɪəns


  • 1 [mass noun] Mathematics The property of a function of retaining its form when the variables are linearly transformed.
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    • The matrix formulation of the model produces an estimate that can be easily transformed into genetic covariance and correlations.
    • If this occurs frequently, then MA experiments will be practically useless for studying any properties of mutational covariance.
    • Contour plots of genetic covariance functions fitted by the character process model.
  • 2 Statistics The mean value of the product of the deviations of two variates from their respective means.
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    • Statistically significant covariances among random intercepts, rates of change, and effects of depressed mood and delinquency variety are reported in the text only.
    • The demographic variances and covariances of the elements are inversely proportional to the total population size.
    • The direct estimation approach does well in estimating the overall covariance function: on average, the covariances are estimated with an error of 15%.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
elaborate ornamentation of a vocal melody