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Question
The following are the marks obtained by 30 students in a class test out of 20 in Mathematics subject.
| 11 | 12 | 13 | 12 | 12 | 15 | 16 | 17 | 18 | 12 |
| 20 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 15 | 15 |
| 16 | 16 | 16 | 15 | 14 | 13 | 12 | 11 | 19 | 17 |
Prepare a table using Tally Marks
Solution
We prepare a table using Tally Marks as
| Number | Tally Marks | Frequency |
| 11 | || | 2 |
| 12 | |||| | 5 |
| 13 | |||| | 4 |
| 14 | |||| | 4 |
| 15 | |||| | | 6 |
| 16 | |||| | 4 |
| 17 | || | 2 |
| 18 | | | 1 |
| 19 | | | 1 |
| 20 | | | 1 |
| Total | 30 |
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