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 · Whereas the range gives you the spread of the whole data set, the interquartile range gives you the range of the middle half of a data set. When is the interquartile range useful? You can …
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) (video) | Khan Academy
"The IQR describes the middle 50% of values when ordered from lowest to highest. To find the interquartile range (IQR), first find the median (middle value) of the lower and upper half of the data. …
Interquartile Range in Statistics - GeeksforGeeks
2 days ago · 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.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: How to Calculate and Visualize IQR
Jun 5, 2024 · The interquartile range (IQR) is a statistical measure of the middle values of a sample data set that is separated into four equal parts. This middle-value grouping can provide a median range …
Interquartile Range (IQR) in Statistics
May 11, 2025 · In this comprehensive guide, we’ll delve deep into the Interquartile Range, exploring its definition, calculation, advantages, disadvantages, and practical applications.
Understanding the Interquartile Range (IQR) for Better Data Analysis
Dec 18, 2025 · Learn how to calculate and use the Interquartile Range (IQR) for robust data analysis, outlier detection, and variability assessment.
An Introduction to the Interquartile Range - ThoughtCo
May 8, 2025 · The interquartile range (IQR) is the difference between the third quartile and first quartile. The IQR is helpful because it is not affected by outliers in the data set.