Mathematics · supplementary
Interquartile range and quartile deviation for JEE
Measures of dispersion; calculation of mean, median, mode of grouped and ungrouped data
Formula
\(\text{IQR}=Q_3-Q_1,\quad \text{QD}=\frac{Q_3-Q_1}{2}\)
Variables: \(Q_1,Q_3\): first and third quartiles.
Measures of dispersion resistant to extremes.