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.

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

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 10, 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 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 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 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.

Nov 4, 2025 · How to Find Interquartile Range The interquartile range IQR is the range in values from the first quartile Q 1 to the third quartile Q 3. Find the IQR by subtracting Q 1 from Q 3.

In statistics, the interquartile range (IQR) is a measure of how spread out the data is. It is equal to the difference between the 75th and 25th percentiles, referred to as the third (Q3) and first …

Jun 5, 2024 · Use the following steps to successfully complete an interquartile range formula and find the IQR. To find interquartile range (IQR) within a data set, begin by ordering your values …