Explanation of interquartile range (IQR) with example data and five-number summary.
A diagram explaining interquartile range (IQR) with a data set (3, 4, 5, 6, 8, 10), showing lower quartile (LQ = 4), median (M = 5), upper quartile (UQ = 8), and IQR calculation (8 - 4 = 4), along with a five-number summary table.