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co·var·i·ance
 covariance
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- pronunciation:
- ko
ver
i
 ns
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noun |
| definition: |
in statistics, a measure of how two variables are related, equal to the product of the deviation of each variable from its mean. In positive covariance, the two variables (such as temperature and air conditioner use) are directly related and follow the same trend. In negative covariance, the two variables (such as temperature and heater use) are inversely related and follow opposite trends.
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