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].
MitoPedia concepts: MitoFit Quality Control System