英语词汇“covariance”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	covariance
释义	Word Frequency covariance (kəʊˈvɛərɪəns) noun statistics 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)
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