The cumulative frequency distribution is given below.
|
C.I |
20 - 30 |
30 - 40 |
40 - 50 |
50 - 60 |
60 - 70 |
70 - 80 |
|
Cf |
8 |
18 |
27 |
52 |
58 |
70 |
Which of the following has the maximum frequency?
1
30 - 40
2
60 - 70
3
50 - 60
4
70 - 80