outlier

  1. Noun.  A person or thing away from others or outside its proper place.
  2. Noun.  (geology) A part of a formation separated from the rest of the formation by erosion.
  3. Noun.  (statistics) A value in a statistical sample which does not fit a pattern that describes most other data points; specifically, a value that lies 1.5 IQR beyond the upper or lower quartile.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.