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 …
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 …
Interquartile Range (IQR): How to Find and Use It - Statistics by Jim
Aug 29, 2021 · The interquartile range (IQR) measures the spread of the middle half of your data. It is the range for the middle 50% of your sample. Use the IQR to assess the variability where …
Interquartile Range in Statistics - GeeksforGeeks
Jul 26, 2025 · The Interquartile Range (IQR) helps us understand the spread of data which focuses on the middle 50% of a dataset. Unlike other measures of spread such as the range …
How to Interpret Interquartile Range (With Examples) - Statology
May 11, 2021 · The interquartile range of a dataset, often abbreviated IQR, is the difference between the first quartile (the 25th percentile) and the third quartile (the 75th percentile) of the …
Interquartile Range (IQR) in Statistics
May 11, 2025 · What Exactly is the Interquartile Range (IQR)? The Interquartile Range (IQR) is a measure of statistical dispersion. It represents the range encompassing the middle 50% of a …
Interquartile Range (IQR): What it is and How to Find it
What is an Interquartile Range? 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 …
Interquartile Range (IQR) - What Is It, Formula, Calculate, Example
What Is Interquartile Range (IQR)? The Interquartile Range (IQR) is the difference in range between the first quartile (Q1) and the third quartile (Q3) in a dataset. In other words, it is a …
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.
Interquartile Range (IQR): How to Find It? (With Examples)
Learn how to calculate the Interquartile Range (IQR) with this beginner-friendly guide. Discover the exclusive and inclusive methods, step-by-step examples, and why IQR is key in statistics.