# mathematical expectation

### noun

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

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

## Origin of mathematical expectation

First recorded in 1830–40

Also called expectation, expected value.

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## mathematical expectation

### noun

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