---
title: Outlier
description: A value for a continuous variable that is unusual by virtue of lying well away from the majority of the values observed. Can be a flag that there has been a data entry error but can be real. Tend to…
url: "https://www.psyctc.org/psyctc/glossary2/outlier/"
updated: "2021-11-08"
category: All OM book glossary entries
---

# Outlier

A value for a continuous variable that is unusual by virtue of lying well away from the majority of the values observed. Can be a flag that there has been a data entry error but can be real. Tend to have a lot of influence in some statistical summaries of data.

#### Details

See histogram.

#### Try also

Histogram!

#### Chapters

Not formally discussed in the book.

#### Dates

Created 8/11/21.