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# About: Discrete Random Variables: Poisson (optional)

Module by: Susan Dean, Barbara Illowsky, Ph.D.. E-mail the authors

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 Name: Discrete Random Variables: Poisson (optional) ID: m16829 Language: English (en) Summary: This module describes the characteristics of a Poisson experiment and the Poisson probability distribution. This module is included in the Elementary Statistics textbook/collection as an optional lesson. Subject: Mathematics and Statistics Keywords: discrete, distribution, elementary, experiment, Poisson, probability, random, statistics, variable License: Creative Commons Attribution License CC-BY 3.0 Authors: Copyright Holders: Maintainers: Latest version: 1.16 (history) First publication date: May 29, 2008 1:05 pm -0500 Last revision to module: May 27, 2012 12:17 pm -0500

 PDF: m16829_1.16.pdf PDF file, for viewing content offline and printing. Learn more. XML: m16829_1.16.cnxml XML that defines the structure and contents of the module, minus any included media files. Can be reimported in the editing interface. Learn more.

## Version History

 Version: 1.16 May 27, 2012 12:17 pm -0500 by Changes: `Discrete Random Variables: Poisson (optional): Updated notation.` Version: 1.15 May 22, 2012 2:54 pm -0500 by Changes: `Discrete Random Variables: Poisson (optional): Updated wording, changed the third example and updated the graph.` Version: 1.14 Apr 28, 2012 11:02 am -0500 by Changes: `Discrete Random Variables: Poisson (optional): Corrected standard deviation formula in glossary.` Version: 1.13 Mar 14, 2012 11:30 pm -0500 by Changes: `Module: Discrete Random Variables: Poisson (optional): Added "selected randomly" and "on average" where needed.` Version: 1.12 May 19, 2009 1:30 pm -0500 by Changes: `Discrete Random Variables: Poisson (optional): Example 3: Corrected the interval of interest to be "one day."` Version: 1.11 Feb 19, 2009 6:34 pm -0600 by Changes: `Discrete Random Variables: Poisson (optional): Updated glossary item.` Version: 1.10 Feb 7, 2009 2:38 pm -0600 by Changes: `Discrete Random Variables: Poisson (optional): Clarified the glossary item "Poisson" with new language.` Version: 1.9 Jan 21, 2009 6:17 pm -0600 by Changes: `Discrete Random Variables: Poisson (optional): Added the Poisson random variable X.` Version: 1.8 Oct 27, 2008 2:12 pm -0500 by Changes: `roles updated` Version: 1.7 Aug 20, 2008 11:11 am -0500 by Changes: `Corrected errors (see m17360 for details)` Version: 1.6 Jul 31, 2008 10:52 am -0500 by Changes: `removed draft note` Version: 1.5 Jul 9, 2008 4:08 am -0500 by Changes: `Post review edits` Version: 1.4 Jul 7, 2008 12:33 pm -0500 by Changes: `post review updates` Version: 1.3 Jun 30, 2008 11:18 pm -0500 by Changes: `Updated for consistency within collection` Version: 1.2 Jun 27, 2008 11:24 am -0500 by Changes: `Roles changed` Version: 1.1 Jun 23, 2008 12:56 am -0500 by Changes: `Initial publication`

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## How to Cite and Attribute This Content

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### American Chemical Society (ACS) Style Guide:

Dean, S.; Illowsky, B. Discrete Random Variables: Poisson (optional), Connexions Web site. http://cnx.org/content/m16829/1.16/, May 27, 2012.

### American Medical Assocation (AMA) Manual of Style:

Dean S, Illowsky B. Discrete Random Variables: Poisson (optional) [Connexions Web site]. May 27, 2012. Available at: http://cnx.org/content/m16829/1.16/.

### American Psychological Assocation (APA) Publication Manual:

Dean, S., & Illowsky, B. (2012, May 27). Discrete Random Variables: Poisson (optional). Retrieved from the Connexions Web site: http://cnx.org/content/m16829/1.16/

### Chicago Manual of Style (Bibliography):

Dean, Susan, and Barbara Illowsky. "Discrete Random Variables: Poisson (optional)." Connexions. May 27, 2012. http://cnx.org/content/m16829/1.16/.

### Chicago Manual of Style (Note):

Susan Dean and Barbara Illowsky, "Discrete Random Variables: Poisson (optional)," Connexions, May 27, 2012, http://cnx.org/content/m16829/1.16/.

### Chicago Manual of Style (Reference, in Author-Date style):

Dean, S., & Illowsky, B. 2012. Discrete Random Variables: Poisson (optional). Connexions, May 27, 2012. http://cnx.org/content/m16829/1.16/.

### Modern Languages Association (MLA) Style Manual:

Dean, Susan, and Barbara Illowsky. Discrete Random Variables: Poisson (optional). Connexions. 27 May 2012 <http://cnx.org/content/m16829/1.16/>.