Outlier

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Outlier

Description

An outlier is a member of a set of values which is inconsistent with other members of that set. An outlier can arise by chance from the expected population, originate from a different population, or be the result of an incorrect recording or other blunder. Many schemes use the term outlier to designate a result that generates an action signal. This is not the intended use of the term. While outliers will usually generate action signals, it is possible to have action signals from results that are not outliers [SOURCE: ISO 5725‑1:1994, modified].


Reference: ISO 13528:2015 Statistical methods for use in proficiency testing by interlaboratory comparison


MitoPedia concepts: MitoFit Quality Control System 

Outlier index

» Outlier index - DatLab
» Pearson’s Coefficient of Skewness, Doane_2011_J Statistics Education: Measuring skewness: a forgotten statistic?