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covariance

/kəʊˈveə.ri.əns/

翻译: 协方差是统计学中衡量两个随机变量共同变化程度的量,即各自与均值之差的乘积的期望值。正协方差表示两个变量倾向于同向变化,负协方差表示反向变化。

1 个条目

noun

/kəʊˈveə.ri.əns/C2formalscientific
  • zh协方差是统计学中衡量两个随机变量共同变化程度的量,即各自与均值之差的乘积的期望值。正协方差表示两个变量倾向于同向变化,负协方差表示反向变化。

A statistical measure indicating the degree to which two variables change together, calculated as the mean of the product of their deviations from their respective means.

  1. Statistical measureC2formalscientific

    A measure of the joint variability of two random variables, calculated as the mean of the product of their deviations from their respective means.

    zh统计度量

    • Covariance is used to determine the direction of the linear relationship between two variables.
    • A positive covariance indicates that the two variables tend to increase together.
    • The covariance matrix is a key component in multivariate statistical analysis.

    同义词covariation

词形
  • covariances plural form
  • covariances' possessive plural form
  • covariance's possessive singular form