Mathematics
Mathematics
Problem
A teacher recorded the marks (out of 100) obtained by students in a quiz. The data are presented in the table below along with a cumulative frequency column.| Marks | Frequency | Cumulative frequency |
|---|---|---|
| 95 | 2 | 2 |
| 80 | 5 | 7 |
| 60 | 8 | 15 |
| 40 | 6 | 21 |
| 20 | 4 | 25 |