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 …
Interquartile Range (IQR): How to Find and Use It
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 most of …
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 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 which can be …
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 dataset. In simple …
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 is a measure …
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 dataset.
Interquartile Range- Math Steps, Examples & Questions
The interquartile range (I Q R) (I QR) is a descriptive statistic and measures the variability or spread of the data. The larger the interquartile range, the wider the spread of the central 50 % 50% of data. …
Interquartile Range (IQR) Definition - AP Statistics Key Term | Fiveable
The Interquartile Range (IQR) shows how much variability exists in the middle 50% of a data set by calculating the difference between Q3 and Q1. This helps highlight where most values lie, offering a …
Interquartile Range: How to Calculate and Visualize IQR
Jun 5, 2024 · To find interquartile range (IQR) within a data set, begin by ordering your values from least to greatest. The first quartile (Q1), or lower quartile, should contain statistics with the smallest values. …