Terms used in official statistics

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Systematic error


An error which, if the given value is repeatedly measured in unchanged conditions, remains constant as to the value and as to the sign, or changes according to the known pattern. Systematic errors may be related to a specific sampling scheme or may come from other sources. In the first case, when the sampling scheme is selected correctly, the errors are small and do not significantly affect the final results. Significant distortion of the results may be caused by systematic errors not related to the sampling scheme.

High-level terms

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