Given below are the cumulative frequencies showing the weights of 685 students of a school. Prepare a frequency distribution table.
Weights (in kg) | No. of students |
Below 25 Below 30 Below 35 Below 40 Below 45 Below 50 Below 55 Below 60 Below 65 Below 70 | 0 24 78 183 294 408 543 621 674 685 |
Weight (in kg) | No. of students | Class interval | Frequency |
Below 30 | 24 | 25-30 | 24 |
Below 35 | 78 | 30-35 | 54 |
Below 40 | 183 | 35-40 | 105 |
Below 45 | 294 | 40-45 | 111 |
Below 50 | 408 | 45-50 | 114 |
Below 55 | 543 | 50-55 | 135 |
Below 60 | 621 | 55-60 | 78 |
Below 65 | 674 | 60-65 | 53 |
Below 70 | 685 | 65-70 | 11 |