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Expected Value
(redirected from Expected number)

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
Expected value
The weighted average of a probability distribution. Also known as the mean value.

Expected Value
The return on an investment as estimated by an asset pricing model. It is calculated by taking the average of the probability distribution of all possible returns. To give a very simple example, a model might state that an investment has a 10% chance of a 100% return and a 90% chance of a 50% return. The expected rate of return is calculated as:

Expected Value = 0.1(1) + 0.9(0.5) = 0.55 = 55%.

It is important to note that there is no guarantee that the expected rate of return and the actual return will be the same. Statistically, the expected value is the mean value of the probability distribution. It is also called the expected rate of return. See also: Abnormal return.


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These pregnancies were associated with an elevated number of (pregnancy terminations) and babies born with major (birth defects) in comparison with the expected numbers in the population," they note.
The expected number of Iraqis to be brought for treatment in the Kingdom is around 15," Al-Mirghalani said.
3% m/m, but the weaker than expected number was no surprise after the sharp decline in German sales reported at the start of the week.
 
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