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mathematical expectation

American  

noun

  1. Mathematics. the product of the probability of the occurrence of an event and the value associated with the occurrence of a given event.

  2. Statistics. the summation or integration, over all values of a variate, of the product of the variate and its probability or its probability density.

mathematical expectation British  

noun

  1. statistics another name for expected value

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of mathematical expectation

First recorded in 1830–40

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.