Lower Quartile Range Calculator
Introduction & Importance
The lower quartile range, also known as the interquartile range (IQR), is a measure of statistical dispersion. It’s the range between the first quartile (Q1) and the third quartile (Q3) of a data set. Understanding the IQR is crucial for identifying outliers and understanding the spread of data.
For more information, see the UK Statistics Authority and the Khan Academy’s guide on box plots.