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[his-tuh-gram] /ˈhɪs təˌgræm/
noun, Statistics.
a graph of a frequency distribution in which rectangles with bases on the horizontal axis are given widths equal to the class intervals and heights equal to the corresponding frequencies.
Origin of histogram
First recorded in 1890-95; histo- + -gram1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for histogram


a statistical graph that represents the frequency of values of a quantity by vertical rectangles of varying heights and widths. The width of the rectangles is in proportion to the class interval under consideration, and their areas represent the relative frequency of the phenomenon in question See also stem-and-leaf diagram
Word Origin
C20: perhaps from histo(ry) + -gram
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for histogram

1891, from histo- + -gram.

Online Etymology Dictionary, © 2010 Douglas Harper
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