Question

The marks obtained by 40 students of class VIII in an examination are given below :

16, 17, 18, 3, 7, 23, 18, 13, 10, 21, 7, 1, 13, 21, 13, 15, 19, 24, 16, 3, 23, 5, 12, 18, 8, 12, 6, 8, 16, 5, 3, 5, 0, 7, 9, 12, 20, 10, 2, 23.

Divide the data into five groups namely 0-5, 5-10, 10-15, 15-20 and 20-25 and prepare a grouped frequency table.

Answer 1

The frequency table for the marks of 40 students of class VIII in an examination is shown below:

| Range of Marks | No: of Students |
| 0-5 | 9 |
| 5-10 | 9 |
| 10-15 | 7 |
| 15-20 | 9 |
| 20-25 | 6 |