When a group data is involved, cumulative frequency is used. The formula will be: Median=[(N+1)/2]th
For member of odd number items. That is, where N is odd
Median=([N/2]th + [N/2 + 1]th)/2
For member of odd number items. That is, where N is odd
Solution:
From the table, there are 20 members as indicated by the cumulative frequency. Since the members are odd (10) the median age will be ([N/2]th + [N/2 + 1]th)/2
