variance background

variance

/ˈvɛːɹi.əns/ /ˈvæɹi.ənts/

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noun

差异，变化.

The act of varying or the state of being variable.

Examples :

"The variance in student performance across the different classes was significant. "

不同班级之间学生的表现差异显著。

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noun

差异，偏差，变异。

A difference between what is expected and what is observed; deviation.

Examples :

"The variance in student test scores was significant, showing a difference from the predicted average. "

学生考试成绩的差异非常显著，表明与预测的平均分存在偏差。

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noun

差异，分歧

The state of differing or being in conflict.

Examples :

"The variance in opinions among the classmates about the best movie created a lively debate. "

同学们对于哪部电影最好，意见上的差异引发了一场热烈的辩论。

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noun

特别许可，豁免。

An official permit to do something that is ordinarily forbidden by regulations.

Examples :

"The student received a variance from the school to wear a different uniform on special holidays. "

这名学生获得了学校的特别许可，可以在特殊节日穿不同的校服。

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noun

差异，不符之处

A discrepancy between two legal documents.

Examples :

"The variance in the student's report card and the school's records caused a delay in their graduation. "

学生成绩单和学校记录之间的差异导致了他们毕业的延误。

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noun

差异，出入.

A departure from a cause of action originally in a complaint.

Examples :

"The original complaint about the noisy neighbor was dismissed, and the variance in the court case focused on the amount of noise allowed, not the original issue of the neighbor's presence. "

最初关于噪音扰民的投诉被驳回了，而法庭审理的差异之处在于允许的噪音量，而非最初邻居是否存在的问题。

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noun

方差，变异数。

The second central moment in probability.

Examples :

"The variance in student test scores showed that some students performed much better than others. "

学生考试成绩的方差表明，有些学生比其他学生表现得好得多。

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noun

自由度，方差

The number of degrees of freedom in a system.

Examples :

"The variance in the students' test scores reflects the different levels of understanding in the class. "

学生们考试分数的差异程度反映了班级里不同程度的理解水平。(This option focuses on the "difference" aspect of variance in the context of scores)

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Illustration variance - Image 1

noun

方差，变异。

Covariance and contravariance generally.

Examples :

"Depending on the variance of the type constructor, the subtyping relation of the simple types may be either preserved, reversed, or ignored for the respective complex types."

取决于类型构造器的变异性，简单类型之间的子类型关系在复合类型中可能会被保持、反转或忽略。

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