Question
Draw a frequency polygon for the following distribution:
| Marks obtained | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 | 70-80 |
| No. of students | 7 | 10 | 6 | 8 | 12 | 3 | 2 | 2 |

