Interquartile Range (IQR)
Interquartile range (IQR) is the middle half of a collection of numbers that are ordered from lowest to highest.
To find the interquartile range of a collection:
- Find the median of the collection
- Find the median of lower and upper half of the collection, leaving out the median number(s)
- Subtract the lower half's median from the upper half's median. The difference is the
Resources
Broader Topics Related to Interquartile Range (IQR)
Median
How to calculate the median of a collection of numbers
Statistics
The analysis of numerical data