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O que (quem) é expected value - definição

LONG-RUN AVERAGE VALUE OF A RANDOM VARIABLE

Expectation operator; Expectation (mathematics); Expectation value; Expectation Value; Mathematical expectancy; E value; Expected number; Expected monetary value; Expected values; Expected Monetary Value; Mathematical expectation; Expectation number; Sklansky Buck; E(X); Expected Value; Unconditional expectation; Expectation Operator; Linearity of expectation; Expect value; Expected payout; Expectation (statistics)

expected value

¦ noun Mathematics a predicted value of a variable, calculated as the sum of all possible values each multiplied by the probability of its occurrence.

Expected value

In probability theory, the expected value (also called expectation, expectancy, mathematical expectation, mean, average, or first moment) is a generalization of the weighted average. Informally, the expected value is the arithmetic mean of a large number of independently selected outcomes of a random variable.

https://en.wikipedia.org/wiki/Expected_value

Expected value of sample information

EVSI; Expected Value of Sample Information

In decision theory, the expected value of sample information (EVSI) is the expected increase in utility that a decision-maker could obtain from gaining access to a sample of additional observations before making a decision. The additional information obtained from the sample may allow them to make a more informed, and thus better, decision, thus resulting in an increase in expected utility.

https://en.wikipedia.org/wiki/Expected_value_of_sample_information

Wikipédia

Expected value

In probability theory, the expected value (also called expectation, expectancy, mathematical expectation, mean, average, or first moment) is a generalization of the weighted average. Informally, the expected value is the arithmetic mean of a large number of independently selected outcomes of a random variable.

The expected value of a random variable with a finite number of outcomes is a weighted average of all possible outcomes. In the case of a continuum of possible outcomes, the expectation is defined by integration. In the axiomatic foundation for probability provided by measure theory, the expectation is given by Lebesgue integration.

The expected value of a random variable X is often denoted by E(X), E[X], or EX, with E also often stylized as E or $\mathbb {E} .$

https://en.wikipedia.org/wiki/Expected value

Exemplos do corpo de texto para expected value

1. Because with a 50–50 chance of calling right, the expected value of playing would be $1.25 a round, while the expected value of not playing was $1.

2. The price disappointed its 2.4 million members who voted for the firm to demutualise when the expected value was considerably higher.

3. Despite the fact that both have precisely the same expected value, over 80% of those surveyed will choose option (a), which is in fact a certain loss.

4. Thames Water is being put up for sale by RWE, its German parent, to financial investors or possibly a flotation on the stock market, with an expected value of '4;Ł7bn.

5. It is likely to float on the stock market in the New Year with an expected value of between 2 million (Dh13.3 million) and 10 million (Dh66.5 million). This could see Blunketts sons make a profit of as much as 285,000 on his initial investment.