Interquartile Range Calculator
Introduction & Importance
The interquartile range (IQR) is a measure of statistical dispersion, representing the spread of the middle 50% of a data set. Calculating it by hand is crucial for understanding your data’s variability and identifying outliers.
How to Use This Calculator
- Enter comma-separated data in the input field.
- Click ‘Calculate’.
- View results and chart below.
Formula & Methodology
The IQR is calculated as Q3 – Q1, where Q1 is the first quartile (25th percentile) and Q3 is the third quartile (75th percentile).
Real-World Examples
Data & Statistics
| Method | IQR |
|---|---|
| Manual | … |
| Calculator | … |
Expert Tips
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Interactive FAQ
What is the interquartile range (IQR)?
The interquartile range (IQR) is a measure of statistical dispersion…