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, - Mathematics

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:

 Age Tally marks Frequency 9 |||| | 6 12 |||| 4 17 |||| 4 18 || 2 19 |||| 4 20 ||| 3 25 || 2

(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.

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RD Sharma Class 8 Maths
Chapter 23 Data Handling-I (Classification and Tabulation of Data)
Exercise 23.1 | Q 10 | Page 8