Background for variance

variance

/ˈvɛːɹi.əns/ /ˈvæɹi.ənts/

Illustration variance - Image 1

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noun

The act of varying or the state of being variable.

Examples :

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

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Illustration variance - Image 1

noun

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. "

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noun

The state of differing or being in conflict.

Examples :

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

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noun

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. "

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noun

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. "

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noun

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. "

Illustration variance - Image 1

noun

The second central moment in probability.

Examples :

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

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Illustration variance - Image 1

noun

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. "

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Illustration variance - Image 1

noun

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."

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