Skip to content
Statistics logo
  • Courses
    • See All Courses
    • Calendar
    • Intro stats for college credit
    • Faculty
    • Group training
    • Credit & Credentialing
    • Teach With Us
  • Programs/Degrees
    • Certificates
      • Analytics for Data Science
      • Biostatistics
      • Programming For Data Science – Python (Experienced)
      • Programming For Data Science – Python (Novice)
      • Programming For Data Science – R (Experienced)
      • Programming For Data Science – R (Novice)
      • Social Science
    • Skillsets
      • Bayesian Statistics
      • Business Analytics
      • Healthcare Analytics
      • Marketing Analytics
      • Operations Research
      • Predictive Analytics
      • Python Analytics
      • R Programming Analytics
      • Rasch & IRT
      • Spatial Statistics
      • Survey Analysis
      • Text Mining Analytics
    • Undergraduate Degree Programs
    • Graduate Degree Programs
  • Partnerships
    • Higher Education
    • Enterprise
  • Resources
    • About Us
    • Blog
    • Word Of The Week
    • Newsletter signup
    • Glossary
    • Statistical Symbols
    • FAQs & Knowledge Base
    • Testimonials
    • Test Yourself
  • Student Login

Outlier

Outlier:

Sometimes a set of data will have one or more items with unusually large or unusually small values. Such extreme values are called outliers. Outliers often arise from some mistakes in data-gathering or data-recording procedures. It is good practice to inspect a data set for outliers first, before other statistical methods are applied to the data. While there are statistical techniques that can single out outliers for special attention, no statistical technique can decide, simply on the basis of the numbers, that a data point is spurious. By the same token, the term outlier means merely that a point is extreme, it does not mean it is spurious.

Browse Other Glossary Entries

Courses Using This Term

Return to Glossary Search

About Statistics.com

Statistics.com offers academic and professional education in statistics, analytics, and data science at beginner, intermediate, and advanced levels of instruction. Statistics.com is a part of Elder Research, a data science consultancy with 25 years of experience in data analytics.

Our Links

  • Contact Us
  • Site Map
  • Explore Courses
  • About Us
  • Management Team
Menu
  • Contact Us
  • Site Map
  • Explore Courses
  • About Us
  • Management Team

Social Networks

Linkedin-in Twitter Facebook-f Youtube

Contact

The Institute for Statistics Education
2107 Wilson Blvd
Suite 850 
Arlington, VA 22201
(571) 281-8817

ourcourses@statistics.com

  • Contact Us
  • Site Map
  • Explore Courses
  • About Us
  • Management Team

© Copyright 2022 - Statistics.com, LLC | All Rights Reserved | Privacy Policy | Terms of Use

By continuing to use this website, you consent to the use of cookies in accordance with our Cookie Policy.

Accept