expected value

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ex·pect·ed value

(ĭk-spĕk′tĭd)
n.
1. A quantity expressing a typical or average value of a random variable.
2. The sum (for discrete variables) or integral (for continuous variables) of the product of a random variable with its probability density function, over its range of values.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

expected value

n
(Statistics) statistics the sum or integral of all possible values of a random variable, or any given function of it, multiplied by the respective probabilities of the values of the variable. Symbol: E(X). E(X) is the mean of the distribution; E(X–c) = E(X)–c where c is a constant. Also called: mathematical expectation
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.expected value - the sum of the values of a random variable divided by the number of valuesexpected value - the sum of the values of a random variable divided by the number of values
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
mean, mean value - an average of n numbers computed by adding some function of the numbers and dividing by some function of n
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