Construct a frequency table with class-intervals 0-5 (5 noe included) of the following marks obtained by a group of 30 students in an examination :
0, 5, 7, 10, 12, 15, 20, 22, 25, 27, 8, 11, 17, 3, 6, 9, 17, 19, 21, 29, 31, 35, 37, 40, 42, 45, 49, 4, 50, 16.
Marks | No.of students |
0 – 5 | 3 |
5 – 10 | 5 |
10 – 15 | 3 |
15 – 20 | 5 |
20 – 25 | 3 |
25 – 30 | 3 |
30 – 35 | 1 |
35 – 40 | 2 |
40 – 45 | 2 |
45 – 50 | 3 |