Definitions for interquartile range
This page provides all possible meanings and translations of the word interquartile range
The difference between the first and third quartiles; a robust measure of sample dispersion.
In descriptive statistics, the interquartile range, also called the midspread or middle fifty, is a measure of statistical dispersion, being equal to the difference between the upper and lower quartiles, IQR = Q3 − Q1. It is a trimmed estimator, defined as the 25% trimmed mid-range, and is the most significant basic robust measure of scale. It is the 3rd Quartile of a box plot plot minus the first quartile.
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"interquartile range." Definitions.net. STANDS4 LLC, 2014. Web. 19 Apr. 2014. <http://www.definitions.net/definition/interquartile range>.