inter-quartile range

interquartile range

[in-ter-kwawr-tahyl, -til]
noun Statistics.
the range of values of a frequency distribution between the first and third quartiles.

1880–85; inter- + quartile Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
interquartile range (ˌɪntəˈkwɔːtaɪl)
statistics the difference between the value of a variable below which lie 25 per cent of the population, and that below which lie 75 per cent: a measure of the spread of the distribution

Collins English Dictionary - Complete & Unabridged 10th Edition
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