To follow along, download the Excel file:IQR. This dataset is the same as the one I use in the illustration above. This file also includes the interquartile range calculations for finding outliers and the IQR normality test described later in this post. In Excel, you’ll need to use the ...
The Interquartile Range is defined as the difference between the first quartile (\(Q_1\)) and third quartile (\(Q_3\)). Mathematically, this is written as: \[ IQR = Q_3 - Q_1 \] How to compute the Interquartile in Excel
What is interquartile range? Use of interquartile range (IQR). Learn how to calculate IQR using the interquartile range formula through examples...