Decile

Pronunciation: /ˈdɛsˌaɪl/ Explain

Percentile, Decile, and Quartile Rankings Score Percentile Decile Quartile 42 5th percentile 48 10th percentile 1st decile 57 15th percentile 57 20th percentile 2nd decile 58 25th percentile 1st quartile 69 30th percentile 3rd decile 70 35th percentile 75 40th percentile 4th decile 75 45th percentile 77 50th percentile 5rd decile 2nd quartile 79 55th percentile 80 60th percentile 6th decile 82 65th percentile 85 70th percentile 7th decile 87 75th percentile 3rd quartile 87 80th percentile 8th decile 92 85th percentile 93 90th percentile 9th decile 98 95th percentile Table 1

In statistics, a decile is one of ten segments of a distribution that has been divided into tenths.[2] The first decile is the first tenth, the second decile is the second tenth, and so on. In probability, a decile is a portion of probability distribution that is divided into ten parts with equal areas[3]. Table 1 shows a set of scores and their percentile, decile and quartile rankings.

References

1. McAdams, David E.. All Math Words Dictionary, decile. 2nd Classroom edition 20150108-4799968. pg 54. Life is a Story Problem LLC. January 8, 2015. Buy the book
2. West, Carl J.. Introduction to mathematical statistics. pp 40-41. www.archive.org. R. G. Adams and Company. 1918. Last Accessed 7/3/2018. http://www.archive.org/stream/introductiontoma00westrich#page/40/mode/1up/search/decile. Buy the book
3. King, Willford I.. The Elements of Statistical Method. pg 153. www.archive.org. The Macmillan Company. 1920. Last Accessed 7/3/2018. http://www.archive.org/stream/elementsofstatis00kinguoft#page/152/mode/2up/search/decile. Buy the book

Cite this article as:

McAdams, David E. Decile. 3/10/2019. All Math Words Encyclopedia. Life is a Story Problem LLC. https://www.allmathwords.org/en/d/decile.html.

Image Credits

• All images and manipulatives are by David McAdams unless otherwise stated. All images by David McAdams are Copyright © Life is a Story Problem LLC and are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Revision History

12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
7/3/2018: Removed broken links, updated license, implemented new markup, implemented new Geogebra protocol. (McAdams, David E.)
1/22/2010: Added "References". (McAdams, David E.)
1/29/2009: Added table illustrating percentile, decile and quartile. (McAdams, David E.)
12/4/2008: Initial version. (McAdams, David E.)