English: Normal distribution curve that illustrates
standard deviations. Each band has 1 standard deviation, and the labels indicate the approximate proportion of area (note: these add up to 99.8%, and not 100% because of rounding for presentation.)
Français : Courbe de
distribution normale montrant l'
écart type. Chaque bande verticale a une largeur d'un écart type et les pourcentages indiquent leur valeur approximative rapportée à la population totale. Note : du fait des arrondis, le total est de 99,8 % au lieu de 100%.
Date
Source
Own work, based (in concept) on figure by Jeremy Kemp, on 2005-02-09
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Кривая нормального распределения, иллюстрирующая стандартные отклонения. Каждая полоса имеет одно стандартное отклонение, а метки указывают приблизительную долю площади (примечание: в сумме они составляют 99,8 %, а не 100 %).
== Summary ==
Standard deviation diagram, based an original graph by Jeremy Kemp, in 2005-02-09 [http://pbeirne.com/Programming/gaussian.ps]. This figure was started in
R using: <pre> x <- seq(-4,4,.1) plot(x,dnorm(x),type
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