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expected value

   Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Acronyms, Wikipedia 0.01 sec.
expected value [ek′spek·təd ′val·yü]
(mathematics)
For a random variablexwith probability density function ƒ(x), this is the integral from -∞ to ∞ of(x)dx. Also known as expectation.
For a random variablexon a probability space (Ω,P), the integral ofxwith respect to the probability measureP.
(systems engineering)
In decision theory, a measure of the value or utility expected to result from a given strategy, equal to the sum over states of nature of the product of the probability of the state times the consequence or outcome of the strategy in terms of some value or utility parameter. Abbreviated EV. Also known as expected utility (EU).


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Lottery Statistics With regards to the lottery, the skeptic proceeds to apply this theorem but never specifies what the expected value should be nor the number of drawings required.
2 percentage points from that of the month prior, but managed to stay within the expected value.
pounds 18M EXPECTED VALUE OF HOUSE SALES TO TENANTS OVER NEXT TWO YEARS 1,500 TARGET FOR NEW SOCIAL AND AFFORDABLE HOMES THIS YEAR
 
 
 
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