Interquartile range - Wikipedia
In descriptive statistics, the interquartile range (IQR) is a measure of statistical dispersion, which is the spread of the data. [1] The IQR may also be called the midspread, middle 50%, fourth spread, or …
How to Find Interquartile Range (IQR) | Calculator & Examples
Sep 25, 2020 · In descriptive statistics, the interquartile range tells you the spread of the middle half of your distribution. Quartiles segment any distribution that’s ordered from low to high into four equal parts.
Interquartile Range (IQR): How to Find and Use It - Statistics by Jim
Aug 29, 2021 · The interquartile range is the middle half of the data that lies between the upper and lower quartiles. In other words, the interquartile range includes the 50% of data points that are above …
Interquartile Range (IQR): What it is and How to Find it
The interquartile range (IQR) is the central half of any dataset. While a range is a measure of where the beginning and end are in a set, an interquartile range is a measure of where the bulk of the values lie.
Quartile Calculator | Interquartile Range Calculator
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, maximum, and …
Interquartile Range in Statistics - GeeksforGeeks
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 central data …
Interquartile Range- Math Steps, Examples & Questions
The interquartile range (I Q R) (I QR) is a measure of the spread or range of values in a dataset. It represents the difference between the upper quartile (75 75 th percentile) and the lower quartile (25 …
Interquartile range review (article) | Khan Academy
Interquartile Range (IQR) Interquartile range is the amount of spread in the middle 50 % of a dataset. In other words, it is the distance between the first quartile (Q 1) and the third quartile (Q 3) .
Interquartile range - Math.net
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 quartiles …
Interquartile Range (IQR) Calculator | Social Science Statistics ...
Interquartile Range (IQR) Calculator The Interquartile Range (IQR) is a measure of statistical dispersion that represents the range of the middle 50% of your data. Unlike standard deviation, IQR is robust to …