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standard deviation

Christopher Gorse, David Johnston and Martin Pritchard.

in A Dictionary of Construction, Surveying and Civil Engineering

January 2012; p ublished online January 2013 .

Reference Entry. Subjects: Engineering and Technology. 36 words.

A statistical spread of data, i.e. the amount a set of values differs from the arithmetical mean. It is calculated

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standard deviation

Edited by MICHAEL ALLABY.

in A Dictionary of Earth Sciences

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Earth Sciences and Geography. 59 words.

A measure of the normal variation within a set of data. In any given measurement, two-thirds of the samples fall

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standard deviation

John Black, Nigar Hashimzade and Gareth Myles.

in A Dictionary of Economics

January 2009; p ublished online January 2009 .

Reference Entry. Subjects: Economics. 43 words.

In a sample of observations, a commonly used measure of dispersion, defined as the square root of the average

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standard deviation

Edited by John Black, Nigar Hashimzade and Gareth Myles.

in A Dictionary of Economics

January 2012; p ublished online May 2013 .

Reference Entry. Subjects: Economics. 45 words.

In a sample of observations, a commonly used measure of *dispersion, defined as the square root of the average of squared deviations of the observations from the sample mean. In a...

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standard deviation

Nigar Hashimzade, Gareth Myles and John Black.

in A Dictionary of Economics

January 2017; p ublished online January 2017 .

Reference Entry. Subjects: Economics. 45 words.

In a sample of observations, a commonly used measure of *dispersion, defined as the square root of the average of squared deviations of the observations from the sample mean. In a...

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standard deviation

Andrew Butterfield and John Szymanski.

in A Dictionary of Electronics and Electrical Engineering

June 2018; p ublished online June 2018 .

Reference Entry. Subjects: Electronic Engineering. 88 words.

In statistics, a measure of the degree to which sample data is spread about the mean of that data. It is computed as the square root of the variance, which is the sum of the squares of the...

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Standard Deviation

Edited by Miquel Porta.

in A Dictionary of Epidemiology

January 2008; p ublished online January 2014 .

Reference Entry. Subjects: Epidemiology. 59 words.

A measure of dispersion or variation. It is the most widely used measure of dispersion of a frequency distribution. It

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Standard Deviation

Edited by Miquel Porta.

in A Dictionary of Epidemiology

January 2014; p ublished online July 2016 .

Reference Entry. Subjects: Epidemiology. 77 words.

A measure of dispersion or variation. It is the most widely used measure of dispersion of a frequency Distribution.

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standard deviation

Edited by Jonathan Law and John Smullen.

in A Dictionary of Finance and Banking

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Financial Institutions and Services. 61 words.

A measure of the dispersion of statistical data. For a series of n values x 1, x 2,

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standard deviation

Edited by Jonathan Law.

in A Dictionary of Finance and Banking

January 2014; p ublished online May 2014 .

Reference Entry. Subjects: Financial Institutions and Services. 72 words.

A measure of the dispersion of statistical data. For a series of n values x 1, x 2,

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standard deviation

Jonathan Law.

in A Dictionary of Finance and Banking

March 2018; p ublished online March 2018 .

Reference Entry. Subjects: Banking; Social Sciences; Economics. 74 words.

A measure of the dispersion of statistical data. For a series of n values x 1, x 2, x n...

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standard deviation

Charles Doyle.

in A Dictionary of Marketing

January 2011; p ublished online January 2011 .

Reference Entry. Subjects: Marketing. 48 words.

The movement and variation of the spread of *data from the average. A low SD indicates that the data

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standard deviation

Charles Doyle.

in A Dictionary of Marketing

January 2016; p ublished online May 2016 .

Reference Entry. Subjects: Marketing. 51 words.

The movement and variation of the spread of *data from the average. A low SD indicates that the data points tend to be very close to the mean, and a high SD indicates that the data is...

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standard deviation

Tony Atkins and Marcel Escudier.

in A Dictionary of Mechanical Engineering

January 2013; p ublished online September 2013 .

Reference Entry. Subjects: Mechanical Engineering. 25 words.

The square root of variance, a measure of the spread of data about the mean value. See also root-mean square...

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standard deviation

Marcel Escudier and Tony Atkins.

in A Dictionary of Mechanical Engineering

July 2019; p ublished online July 2019 .

Reference Entry. Subjects: Mechanical Engineering; Engineering and Technology. 25 words.

The square root of variance, a measure of the spread of data about the mean value. See also root-mean square...

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standard deviation

in A Dictionary of Physics

January 2009; p ublished online January 2009 .

Reference Entry. Subjects: Physics. 109 words.

A measure of the dispersion of data in statistics. For a set of values a 1, a 2,

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standard deviation

Edited by Richard Rennie and Jonathan Law.

in A Dictionary of Physics

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Physics. 118 words.

A measure of the dispersion of data in statistics. For a set of values a 1, a 2, a 3...

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standard deviation

Edited by Jonathan Law and Richard Rennie.

in A Dictionary of Physics

January 2015; p ublished online September 2015 .

Reference Entry. Subjects: Physics. 99 words.

A measure of the dispersion of data in statistics. For a set of values a 1, a 2,

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standard deviation

Edited by John M. Last.

in A Dictionary of Public Health

January 2007; p ublished online January 2007 .

Reference Entry. Subjects: Public Health and Epidemiology. 41 words.

The most widely used measure of spread or dispersion from the central value of a frequency distribution. It is the

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standard deviation

Miquel Porta.

Edited by John M. Last.

in A Dictionary of Public Health

P ublished online May 2018 .

Reference Entry. Subjects: Medicine and Health; Public Health and Epidemiology. 41 words.

The most widely used measure of spread or dispersion from the central value of a frequency distribution. It is the positive square root of the variance from the mean or central value of the...

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