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  1. 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 …

  2. 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 …

  3. 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 …

  4. 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, …

  5. 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 …

  6. 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 …

  7. 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 …

  8. 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 …

  9. 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.

  10. Interquartile Range Formula- What is IQR formula? Examples

    The Interquartile Range formula finds the difference between the two extreme observations or data points of the distribution. Understand more about the IQR formula along with its formulas …