STANDARD DEVIATION

Pronunciation (US):

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 Dictionary entry overview: What does standard deviation mean? 

• STANDARD DEVIATION (noun)
  The noun STANDARD DEVIATION has 1 sense:

1. the square root of the variance

  Familiarity information: STANDARD DEVIATION used as a noun is very rare.

 Dictionary entry details 

• STANDARD DEVIATION (noun)

Sense 1

Meaning:

The square root of the variance

Classified under:

Nouns denoting cognitive processes and contents

Hypernyms ("standard deviation" is a kind of...):

variance (the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value)

Domain category:

statistics (a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters)

 Context examples 

The ratio of standard deviation to mean, expressed as a percentage or fraction.

(Coefficient of Variance, NCI Thesaurus)

In addition to the specific parameters of the distribution, a mean and standard deviation are always specified.

(Parametric Probability Distribution, NCI Thesaurus)

A test of the hypothesis that the standard deviations of two normally distributed populations are equal, and thus that they are of comparable origin.

(F-Test, NCI Thesaurus)

The function generates a symmetrical curve, whose position and shape is determined by its location and scale parameters, the mean and standard deviation respectively.

(Normal Distribution, NCI Thesaurus)

A value derived from mean corpuscular volume and the standard deviation of the red blood cell volume in a whole blood specimen.

(Erythrocyte Distribution Width Measurement, NCI Thesaurus/CDISC)

In this normalization process, each value subtracts the column mean and is divided by the column standard deviation.

(Discretize, NCI Thesaurus)

It is computed directly from the RBC histogram and is calculated as a standard statictical value, the coefficient of variation of the red cell volume ditribution (ratio of standard deviation and mean copuscular volume).

(Erythrocyte Distribution Width Measurement, NCI Thesaurus)