Terms used in official statistics

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Covariance


Definition:

The arithmetic mean of the product of the deviations of the values of the variables X and Y from their mean values. Positive covariance means that when the value of X increases, the Y value generally increases as well. The negative covariance value will indicate that, with growth X the Y value generally decreases.


Low-level terms:

Contact person on methodology:
GUS – Departament Programowania, Koordynacji Badań i Rejestrów
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