A method of determining variance in the presence of a linear systematic error
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The determination of the variance of a series of measuring instrument readings is possible not only with constant external conditions but also in the presence of a systematic error.
The method here developed provides the determination of the variance of instrument readings in the presence of a systematic progressive linear error.
The determination of the variance by this method is possible both by calculation and graphically.
The definition of the term “variance” adopted in metrology is a particular case of the general variation in which the readings are affected by a systematic error.
KeywordsPhysical Chemistry Analytical Chemistry Systematic Error General Variation External Condition
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