Sep 25, 2020 · Interquartile range calculator You can calculate the interquartile range by hand or with the help of our interquartile range calculator below.

Aug 29, 2021 · How to Find the Interquartile Range (IQR) by Hand The formula for finding the interquartile range takes the third quartile value and subtracts the first quartile value.

The interquartile range of a continuous distribution can be calculated by integrating the probability density function (which yields the cumulative distribution function —any other means of …

Dec 29, 2025 · The Interquartile Range (IQR) tells us how spread out the middle 50% of the data is. It is less affected by extreme values and gives a better idea of how tightly or loosely the …

The Interquartile range formula helps in finding the difference between the third quartile and the first quartile. The Interquartile range formula measures the variability, based on dividing an …

The interquartile range on a box and whiskers chart [1]. The interquartile range formula is the first quartile subtracted from the third quartile: IQR = Q3 – Q1. The IQR gives us a sense of the …

The Interquartile Range (IQR) is a measure of statistical dispersion between the first quartile (Q1) and the third quartile (Q3) in a dataset. It is less influenced by outliers, making it a robust …

Nov 4, 2025 · This quartile calculator and interquartile range calculator finds first quartile Q 1, second quartile Q 2 and third quartile Q 3 of a data set. It also finds median, minimum, …

The article below explains the interquartile range definition, how to find the interquartile range using the IQR formula, and shows a fully worked example of calculating the interquartile range.

Interquartile range is the difference between the upper quartile (or third quartile) and the lower quartile (or first quartile) in an ordered data set. Interquartile range = = upper quartile − lower …