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Multilingual Demographic Dictionary, second unified edition, English volume

Difference between revisions of "Mean deviation"

Multilingual Demographic Dictionary, second unified edition, English vol.
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(Etienne van de Walle et al., second 1982 edition)
(Etienne van de Walle et al., second 1982 edition)
 
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[[en-II:mean deviation]] [[ar-II:متوسط الإنحراف المطلق]] [[cs-II:průměrná odchylka]] [[de-II:durchschnittliche Abweichung]] [[es-II:desviación media absoluta]] [[fr-II:écart absolu moyen]] [[it-II:scarto semplice medio]] [[ja-II:平均偏差]] [[pt-II:desvio médio]] [[ru-II:Среднее линейное отклонение]] [[zh-II:均差]]  
 
[[en-II:mean deviation]] [[ar-II:متوسط الإنحراف المطلق]] [[cs-II:průměrná odchylka]] [[de-II:durchschnittliche Abweichung]] [[es-II:desviación media absoluta]] [[fr-II:écart absolu moyen]] [[it-II:scarto semplice medio]] [[ja-II:平均偏差]] [[pt-II:desvio médio]] [[ru-II:Среднее линейное отклонение]] [[zh-II:均差]]  
 
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[[Category:Term of the second edition of the multilingual demographic Dictionary]]
 
[[Category:Term of the second edition of the multilingual demographic Dictionary]]

Latest revision as of 05:00, 5 February 2010

Mean deviation  (MEAN deviation)


The dispersion 1, scatter 1, variation 1 or variability 1 of a set of observations depends on the differences 2 or deviations 2 between its elements. Here only the most common measures of dispersion 3 are mentioned. The range 4 is the difference between the largest and the smallest values of a set of elements. The interquartile range 5 is the difference between the first and the third quartiles (142-2) and contains half the observations in the set. The semi-interquartile range 6, also called the quartile deviation 6, which is half the interquartile range, is often taken as a measure of dispersion. The mean deviation 7 or average deviation 7 is the arithmetic mean (140-2) of the positive values of the deviations of the individual items from the average, the variance 8 is the arithmetic mean of the squares of these deviations and the standard deviation 9 is the square root of the variance.

  • 9. The common notation for the standard deviation is σ.

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