Statistics

===Applied statistics, theoretical statistics and mathematical statistics===
''Applied statistics,'' sometimes referred to as ''Statistical science,''<ref>{{Cite journal|last=Nelder|first=John A.|date=1999|title=From Statistics to Statistical Science|url=https://www.jstor.org/stable/2681191|journal=Journal of the Royal Statistical Society. Series D (The Statistician)|volume=48|issue=2|pages=257–269|doi=10.1111/1467-9884.00187|jstor=2681191|issn=0039-0526|access-date=2022-01-15|archive-date=2022-01-15|archive-url=https://web.archive.org/web/20220115160959/https://www.jstor.org/stable/2681191|url-status=live}}</ref> comprises descriptive statistics and the application of inferential statistics.<ref>Nikoletseas, M.M. (2014) "Statistics: Concepts and Examples." {{isbn|978-1500815684}}</ref><ref>Anderson, D.R.; Sweeney, D.J.; Williams, T.A. (1994) ''Introduction to Statistics: Concepts and Applications'', pp. 5–9. West Group. {{isbn|978-0-314-03309-3}}</ref> ''Theoretical statistics'' concerns the logical arguments underlying justification of approaches to [[statistical inference]], as well as encompassing ''mathematical statistics''. Mathematical statistics includes not only the manipulation of [[probability distribution]]s necessary for deriving results related to methods of estimation and inference, but also various aspects of [[computational statistics]] and the [[design of experiments]].

[[Statistical consultant]]s can help organizations and companies that do not have in-house expertise relevant to their particular questions.