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VARIANCE - Definiția din dicționar

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Va"ri*ance (?), n. [L. variantia.] 1. The quality or state of being variant; change of condition; variation.
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2. Difference that produces dispute or controversy; disagreement; dissension; discord; dispute; quarrel.
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That which is the strength of their amity shall prove the immediate author of their variance. Shak.
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3. (Law) A disagreement or difference between two parts of the same legal proceeding, which, to be effectual, ought to agree, -- as between the writ and the declaration, or between the allegation and the proof. Bouvier.
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4. (Statistics) The expected value of the square of the deviation from the mean of a randomly distributed variable; the second moment about the mean. This is also the square of the standard deviation.

At variance, in disagreement; in a state of dissension or controversy; at enmity.What cause brought him so soon at variance with himself?” Milton.
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