Construct a frequency distribution table for the following marks obtained by 25 students in a history test in class VIII of a school:
Question:

Construct a frequency distribution table for the following marks obtained by 25 students in a history test in class VIII of a school:

9, 17, 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?

Solution:

The frequency distribution table is given below:

(i) The range of marks is $25-9$, i.e. 16 .

(ii) The highest mark is 25.

(iii) The mark that occurs most frequently is 9. It occurs 6 times.