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Histogram example - Age of presidential ascension

This histogram example was redesigned from the Wikimedia Commons file: Age of presidental ascention.jpg. "Age of US president at date of ascension to office in five-year age groups." [commons.wikimedia.org/wiki/File:Age_of_presidental_ascention.jpg] This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/licenses/by-sa/3.0/deed.en] "Age of presidents when assuming office approximately follows a bell curve (mean age marked by red line, c. 55 years)" [List of Presidents of the United States by age. Wikipedia] The histogram example "Age of presidential ascension" was created using the ConceptDraw PRO software extended with the Seven Basic Tools of Quality solution from the Quality area of ConceptDraw Solution Park.
Histogram
Histogram, histogram, frequency histogram,