Terms used in official statistics

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Systematic error


An error that, when a given quantity is repeatedly measured under unchanged conditions, remains constant in value and sign, or changes according to a certain relationship. Systematic error biases the estimator. The sources of systematic errors may be: coverage errors, measurement errors, and non-responses.

High-level terms

Low-level terms:

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