Question

Find out the mode from the following series :

Class	0-10	10-20	20-30	30-40	40-50	50-60	60-70
Frequency	5	7	10	18	16	10	5

Answer 1

Class	Frequency
0-10	5
10-20	7
20-30	f0 10
l1 30-40	f1 18
40-50	f2 16
50-60	10
60-70	5

Highest Frequency =18 which lies in the Class interval (30-40)