Q. The marks of 200 students in a test were recoded a follows :
Marks % | 10-19 | 20-29 | 30-39 | 40-49 | 50-59 | 60-69 | 70-79 | 80-89 |
No of students | 7 | 11 | 20 | 46 | 57 | 37 | 15 | 7 |
Draw a cumulative frequency table.
Marks % | 10-19 | 20-29 | 30-39 | 40-49 | 50-59 | 60-69 | 70-79 | 80-89 |
No of students | 7 | 11 | 20 | 46 | 57 | 37 | 15 | 7 |