Homework Answers
Solution
Given that,
| Class | Tally Mark | Frequency |
| 0 - 10 | - | 0 |
| 10 - 20 | |||||,|| | 7 |
| 20 - 30 | |||||,|| | 7 |
| 30 - 40 | ||| | 3 |
| 40 - 50 | |||| | 4 |
| 50 - 60 | ||||| | 5 |
| 60 - 70 | | | 1 |
| 70 - 80 | | | 1 |
| 80 - 90 | || | 2 |
| Total | 30 |
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