expected-value

expected value

noun
Statistics, Mathematics, mathematical expectation.

Origin:
1945–50

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expected value
 
n
statistics Also called: mathematical expectation 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

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