Question

find the median for the following frequency distribution​

Answer 1

The cumulative frequency just greater than 24.5 is 26 and the corresponding class is 15 - 20. Thus, the median class is 15 – 20. ∴ l = 15, h = 5, f = 15, cf = c.f. of preceding class = 11 and = 24.5. Hence, the median = 19.5.