You and Your Research Transcription of the Bell Communications Research Colloquium Seminar 7 March 1986 J. F.
AGU. American Geophysical Union. Earth - Oceans - Atmosphere - S
Accuracy is the proximity of measurement results to the true value; precision, the repeatability, or reproducibility of the measurement A measurement system can be accurate but not precise, precise but not accurate, neither, or both. For example, if an experiment contains a systematic error, then increasing the sample size generally increases precision but does not improve accuracy. The result would be a consistent yet inaccurate string of results from the flawed experiment. Eliminating the systematic error improves accuracy but does not change precision. A measurement system is considered valid if it is both accurate and precise. Accuracy and precision
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