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covariance
The tendency of two random variables to move in tandem. This is important in applications such as survey-taking and sociology, as well as in many branches of science, because, if two things tend to vary together, there is a good chance they may be causally linked.
Related entry
• causalityRelated category
• PROBABILITY AND STATISTICSAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History