variances是什么意思-variances英文怎么读-英汉词典翻译

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英['veəriənsɪz] 美['veəriənsɪz]

名词 variance:

an event that departs from expectations
discord that splits a group
the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value
a difference between conflicting facts or claims or opinions
the quality of being subject to variation
an official dispensation to act contrary to a rule or regulation (typically a building regulation)
an activity that varies from a norm or standard

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