Question

Write the modal class for the following frequency distribution:

Class-interval:	10−15	15−20	20−25	25−30	30−35	35−40
Frequency:	30	35	75	40	30	15

 

Answer 1

Class Interval	10−15	15−20	20−25	25−30	30−35	35−40
Frequency	30	35	75	40	30	15

Here, the maximum frequency is 75 and the corresponding class-interval is 20−25.

Therefore, 20−25 is the modal class.