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Question
Construct a cumulative frequency distribution table from the frequency table given below:
| Class Interval | Frequency |
| 0 -8 | 9 |
| 8 - 16 | 13 |
| 16 - 24 | 12 |
| 24 - 32 | 7 |
| 32 - 40 | 15 |
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Solution
The cumulative frequency distribution table is
| C.I | f | c.f |
| 0 - 8 | 9 | 9 |
| 8 - 16 | 13 | 22 |
| 16 - 24 | 12 | 34 |
| 24 - 32 | 7 | 41 |
| 32 - 40 | 15 | 56 |
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| 60 – 70 | `\cancel(bb|bb|bb|bb|) bb|` | |
| 70 – 80 | `bb|bb|` | |
| 80 – 90 | `bb|` |
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