英语词汇“expected value”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	expected value
释义	ex·pect·ed value (ĭk-spĕktĭd) n. 1. A quantity expressing a typical or average value of a random variable. 2. The sum (for discrete variables) or integral (for continuous variables) of the product of a random variable with its probability density function, over its range of values.
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