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單詞乎

expected value

expected value是什么意思、expected value怎么讀

expected value漢語翻譯

【計(jì)】 期望值, 期待值
【化】 期望值; 期待值; 統(tǒng)計(jì)平均值
【經(jīng)】 預(yù)期值

expected value英語解釋

名詞 expected value:

  1. the sum of the values of a random variable divided by the number of values
    同義詞：arithmetic mean, first moment, expectation

expected value例句

  1. The expected value of a positive integral power of a random variable. The first moment is the mean of the distribution.
    矩，動(dòng)差任意變量的正整數(shù)功效的期望值。第一個(gè)矩是分配的平均數(shù)
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