Mathematics · essential
Median of grouped continuous data for JEE
Measures of dispersion; calculation of mean, median, mode of grouped and ungrouped data
Formula
\(\text{Median}=l+\left(\frac{\frac{N}{2}-c_f}{f}\right)h\)
Variables: \(l\): lower boundary of median class, \(N\): total frequency, \(c_f\): cumulative frequency before median class, \(f\): frequency of median class, \(h\): class width.
Conditions: Median class is the class whose cumulative frequency first exceeds \(N/2\).
Median of grouped data.