Construct a frequency distribution table for the following marks obtained by 25 students in a history test in class VIII of a school :
9, 7, 12, 20, 9, 18, 25, 17, 19, 9, 12, 9, 12, 18, 17, 19, 20, 25, 9, 12, 17, 19, 19, 20, 9
(i) What is the range of marks?
(ii) What is the highest mark?
(iii) Which mark is occurring more frequently?
Marks | No.of students |
9 | 6 |
12 | 4 |
17 | 4 |
18 | 2 |
19 | 4 |
20 | 3 |
25 | 2 |
(i) Range of marks = 25 – 9 = 16.
(ii) Highest marks is = 25.
(iii) Marks occurring more frequently = 9.