what is the importance of cumulative frequency distribution?
Presenting the data in a cumulative frequency form is another way of organising a data. For instance, presenting the data in a more than cumulative frequency form helps in analysing the frequency of the given variable that corresponds to greater than a specif value.
For istance as per the given data, cumulative frequency of 64 corresponding to more than 5, suggests that there are 64 students whose score is greater than 5.
| Marks | No. of students (f) | Cumulative Frequency (c.f) |
| More than 0 | 6 | 70 |
| More than 5 | 9 | 64 (= 70-6) |
| More than 10 | 12 | 55 (= 64-9) |
For istance as per the given data, cumulative frequency of 64 corresponding to more than 5, suggests that there are 64 students whose score is greater than 5.