英语词汇“mathematical expectation”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	mathematical expectation
释义	WordReference Random House Unabridged Dictionary of American English © 2024 mathemat′ical expecta′tion, [Math.]the product of the probability of the occurrence of an event and the value associated with the occurrence of a given event. Statisticsthe summation or integration, over all values of a variate, of the product of the variate and its probability or its probability density. `Also called expectation, expected value.` 1830–40
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