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class interval

American

noun

Statistics.

one of a set of intervals of arbitrary width into which the range of a sample of measurement is partitioned.

class interval British

noun

statistics one of the intervals into which the range of a variable of a distribution is divided, esp one of the divisions of the base line of a bar chart or histogram

"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

Etymology

Origin of class interval

First recorded in 1925–30

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A value is counted in a class interval if it falls on the left boundary but not if it falls on the right boundary.

From Textbooks • Mar. 27, 2020

Next, calculate the width of each bar or class interval.

From Textbooks • Sep. 19, 2013

If the data are discrete and there are not too many different values, a width that places the data values in the middle of the bar or class interval is the most convenient.

From Textbooks • Sep. 19, 2013

Next, calculate the width of each bar or class interval.

From Textbooks • Sep. 19, 2013

A value is counted in a class interval if it falls on the left boundary, but not if it falls on the right boundary.

From Textbooks • Sep. 19, 2013

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023