midspread
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Interquartile range — In descriptive statistics, the interquartile range (IQR), also called the midspread, middle fifty and middle of the #s, is a measure of statistical dispersion, being equal to the difference between the third and first quartiles.Unlike the (total) … Wikipedia
interquartile range — noun The difference between the first and third quartiles; a robust measure of sample dispersion. Syn: IQR, midspread … Wiktionary
