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About: Law of total covariance     Goto   Sponge   NotDistinct   Permalink

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Type: yago:WikicatStatisticalLawsyago:WikicatStatisticalTheoremsyago:Abstraction100002137yago:Collection107951464yago:Communication100033020yago:Group100031264yago:Law108441203yago:Message106598915yago:Proposition106750804yago:Statement106722453yago:Theorem106752293 New Facet based on Instances of this Class

In probability theory, the law of total covariance, covariance decomposition formula, or conditional covariance formula states that if X, Y, and Z are random variables on the same probability space, and the covariance of X and Y is finite, then The nomenclature in this article's title parallels the phrase law of total variance. Some writers on probability call this the "conditional covariance formula" or use other names.