Make a frequency table from the following:
Marks obtainedNumber of studentsMore than 600More than 5016More than 4040More than 3075More than 2087More than 1092More than 0100
Sol:
Marks (below) | Number of students (Cumulative Frequency) | Class Intervals | Frequency |
More than 60 | 0 | More than 60 | 0 |
More than 50 | 16 | 50-60 | 16-0=16 |
More than 40 | 40 | 40-50 | 40-16=24 |
More than 30 | 75 | 30-40 | 75-40=35 |
More than 20 | 87 | 20-30 | 87-75=12 |
More than 10 | 92 | 10-20 | 92-87=5 |
More than 0 | 100 | 0-20 | 100-92=8 |
Total | 100 |