Question

What is the lower limit of the modal class of the following frequency distribution?

Age (in years)	0 - 10	10- 20	20 -30	30 – 40	40 –50	50 – 60
Number of patients	16	13	6	11	27	18

Answer 1

Here the maximum class frequency is 27, and the class corresponding to this frequency is 40-50 So the modal class is 40-50.
Now,
Modal class = 40-50, lower limit (/) of modal class = 40.
Thus, lower limit (/) of modal class is 40