Expected value
In
probability theory the expected value (or mathematical expectation, or mean) of a discrete
random variable is the sum of the probability of each possible outcome of the experiment multiplied by the outcome value (or
payoff). Thus, it represents the average amount one "expects" as the outcome of the random trial when identical odds are repeated many times. Note that the value itself may not be
expected in the general sense - the "expected value" itself may be unlikely or even impossible.
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expected value
Noun
1. the sum of the values of a random variable divided by the number of values
(synonym) arithmetic mean, first moment, expectation
(hypernym) mean, mean value
(classification) statistics
Expected value
expected value
See
expected value. Often used in poker to mean "profitability in the long run".
Expected value
Expected value
(Econ) Giá trị kỳ vọng; giá trị dự tính.+ Còn được gọi TRUNG BÌNH, kỳ vọng toán học.Giá trị kỳ vọng của một BIẾN SỐ NGẪU NHIÊN là giá trị trung bình của phân phối của biến ấy.
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