Mathematics
Construct the cumulative frequency table for :
| Marks | 20 - 29 | 30 - 39 | 40 - 49 | 50 - 59 |
|---|---|---|---|---|
| No. of students | 18 | 23 | 36 | 42 |
Statistics
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Answer
The cumulative frequency table for the given distribution is :
| Marks | No. of students | Cumulative frequency |
|---|---|---|
| 20 - 29 | 18 | 18 |
| 30 - 39 | 23 | 18 + 23 = 41 |
| 40 - 49 | 36 | 18 + 23 + 36 = 77 |
| 50 - 59 | 42 | 18 + 23 + 36 + 42 = 119 |
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