Editing Quasi-arithmetic mean (section)

{{Short description|Generalization of means}}
In [[mathematics]] and [[statistics]], the '''quasi-arithmetic mean''' or '''generalised ''f''-mean''' or '''Kolmogorov-Nagumo-de Finetti mean'''<ref>{{cite journal |last1=Nielsen |first1=Frank |last2=Nock |first2=Richard |title=Generalizing skew Jensen divergences and Bregman divergences with comparative convexity |journal=IEEE Signal Processing Letters |date=June 2017 |volume=24 |issue=8 |page=2 |doi=10.1109/LSP.2017.2712195 |arxiv=1702.04877 |bibcode=2017ISPL...24.1123N |s2cid=31899023 }}</ref> is one generalisation of the more familiar [[mean]]s such as the [[arithmetic mean]] and the [[geometric mean]], using a function <math>f</math>. It is also called '''Kolmogorov mean''' after Soviet mathematician [[Andrey Kolmogorov]]. It is a broader generalization than the regular [[generalized mean]].