Draw More than type cumulative frequency curve
| Class | Frequency |
| 10 - 20 | 15 |
| 20 - 30 | 25 |
| 30 - 40 | 20 |
| 40 - 50 | 12 |
| 50 - 60 | 8 |
| 60 - 70 | 5 |
| 70 - 80 | 3 |
Solution:
To draw More than type cumulative frequency curve, we first prepare the following table
| Class | Frequency
`f` | > Lower | `cf` |
| 10 - 20 | 15 | 10 | 88 |
| 20 - 30 | 25 | 20 | 73 |
| 30 - 40 | 20 | 30 | 48 |
| 40 - 50 | 12 | 40 | 28 |
| 50 - 60 | 8 | 50 | 16 |
| 60 - 70 | 5 | 60 | 8 |
| 70 - 80 | 3 | 70 | 3 |
| 80 - 90 | - | 80 | 0 |
This material is intended as a summary. Use your textbook for detail explanation.
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