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Accuracy definition
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The accuracy of a measurement is how close a result comes to the true value. Determining the accuracy of a measurement usually requires calibration of the analytical method with a known standard. PrecisionPrecision is the reproducibility of multiple measurements. It is usually described by the standard deviation, standard error, or confidence interval. A separate document defines these quantitative measures of precision.

Illustration of accuracy and precisionRelated topics:data handling

See also:
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