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#expected_value

Expected value

Average value of a random variable

In probability theory, the expected value is a generalization of the weighted average. Informally, the expected value is the mean of the possible values a random variable can take, weighted by the probability of those outcomes. Since it is obtained through arithmetic, the expected value sometimes may not even be included in the sample data set; it is not the value you would "expect" to get in reality.

Wed 18th

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Expected value Expected value (disambiguation) Expected Expected value of perfect information Expected commercial value Expected shortfall Expected utility hypothesis Expected value of including uncertainty Conditional expectation Ergodicity economics
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