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单词 StandardDeviation
释义

standard deviation


Given a random variableMathworldPlanetmath X, the standard deviationMathworldPlanetmath of X is defined as
SD[X]=Var[X].

The standard deviation is a measure of the variation of X around the expected valueMathworldPlanetmath.

Titlestandard deviation
Canonical nameStandardDeviation
Date of creation2013-03-22 11:53:49
Last modified on2013-03-22 11:53:49
Ownermathcam (2727)
Last modified bymathcam (2727)
Numerical id9
Authormathcam (2727)
Entry typeDefinition
Classificationmsc 60E05
Classificationmsc 46L05
Classificationmsc 82-00
Classificationmsc 83-00
Classificationmsc 81-00
Classificationmsc 22A22
Related topicVarianceMathworldPlanetmath
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