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About: Mathematical Expectation: Simple Random Variables

Module by: Paul E Pfeiffer. E-mail the author

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Name: Mathematical Expectation: Simple Random Variables
ID: m23387
Language: English (en)
Summary: For simple, real valued random variables, the expectation is the probability weighted average of the values taken on. It may be viewed as the center of mass for the probability mass distribution on the line.
Subject: Mathematics and Statistics
Keywords: affine, center of mass, distribution, expectation, function of random variables, linearity, weighted average
License: Creative Commons Attribution License CC-BY 3.0

Authors: Paul E Pfeiffer (perhp@earthlink.net)
Copyright Holders: Paul E Pfeiffer (perhp@earthlink.net)
Maintainers: Paul E Pfeiffer (perhp@earthlink.net), Daniel Williamson (dcwill@cnx.org), C. Sidney Burrus (csb@rice.edu)

Latest version: 1.6 (history)
First publication date: Apr 16, 2009 4:11 pm -0500
Last revision to module: Sep 18, 2009 1:17 pm -0500

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XML: m23387_1.6.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: 1.6 Sep 18, 2009 1:17 pm -0500 by Daniel Williamson
Changes:
added google analytics tracking code

Version: 1.5 Jul 27, 2009 12:06 pm -0500 by Daniel Williamson
Changes:
disjoint union fix

Version: 1.4 Jun 19, 2009 11:41 am -0500 by Daniel Williamson
Changes:
m-file fixes, supplemental links, metadata updated

Version: 1.3 Jun 9, 2009 5:15 pm -0500 by Daniel Williamson
Changes:
updated links, images and accessibility

Version: 1.2 May 26, 2009 4:39 pm -0500 by Daniel Williamson
Changes:
fixed module names, and updated content structure

Version: 1.1 May 17, 2009 7:05 pm -0500 by Paul E Pfeiffer
Changes:
Initial content

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American Chemical Society (ACS) Style Guide:

Pfeiffer, P. Mathematical Expectation: Simple Random Variables, OpenStax-CNX Web site. http://cnx.org/content/m23387/1.6/, Sep 18, 2009.

American Medical Assocation (AMA) Manual of Style:

Pfeiffer P. Mathematical Expectation: Simple Random Variables [OpenStax-CNX Web site]. September 18, 2009. Available at: http://cnx.org/content/m23387/1.6/.

American Psychological Assocation (APA) Publication Manual:

Pfeiffer, P. (2009, September 18). Mathematical Expectation: Simple Random Variables. Retrieved from the OpenStax-CNX Web site: http://cnx.org/content/m23387/1.6/

Chicago Manual of Style (Bibliography):

Pfeiffer, Paul. "Mathematical Expectation: Simple Random Variables." OpenStax-CNX. September 18, 2009. http://cnx.org/content/m23387/1.6/.

Chicago Manual of Style (Note):

Paul Pfeiffer, "Mathematical Expectation: Simple Random Variables," OpenStax-CNX, September 18, 2009, http://cnx.org/content/m23387/1.6/.

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

Pfeiffer, P. 2009. Mathematical Expectation: Simple Random Variables. OpenStax-CNX, September 18, 2009. http://cnx.org/content/m23387/1.6/.

Modern Languages Association (MLA) Style Manual:

Pfeiffer, Paul. Mathematical Expectation: Simple Random Variables. OpenStax-CNX. 18 Sep. 2009 <http://cnx.org/content/m23387/1.6/>.