Middlerange

Middlerange is a term used to describe the central portion of a spectrum, distribution, or set of measurements, lying between the lower and upper extents. The exact meaning is context dependent, and there is no universally formal definition. In statistics, middlerange is often used informally to denote the central portion of data, sometimes coinciding with the middle fifty percent of observations around the median, or with the interquartile range (Q1 to Q3). In other contexts it may refer to the midrange value, defined as the average of the minimum and maximum values, which provides a single central reference point but does not capture dispersion.

Applications include pricing and product categorization, where middlerange products occupy the mid-tier between budget and premium lines; quality control, where middlerange tolerances describe acceptable deviations around a target not at the extremes; and data reporting, where middlerange figures are used to illustrate central tendency while mitigating the influence of outliers.

Etymology and usage notes: The term blends middle and range and is sometimes written as mid-range or middlerange in different sources. It is more common in informal writing and branding than as a formal statistical term.

See also: mid-range, middle fifty, interquartile range, midrange, lower range, upper range.