Page 236 - ICSE Math 6

Example 1: In a Mathematics test, the following marks were obtained by 40 students. Arrange these
marks in a table using tally marks.

9 1 3 7 6 5 5 4 2 4

4 9 5 3 7 1 6 5 2 7
7 3 8 4 1 8 9 5 8 6

7 4 5 6 9 6 4 1 6 6

Based on the table answer the following.

(a) How many students obtained 8 or more marks?
(b) How many students obtained less than 4 marks?

(c) How many students obtained the highest marks?
Solution: The given data is arranged in the following table.

Marks obtained Tally marks No. of students

1 4

2 2

3 3

4 6

5 6

6 7

7 5

8 3

9 4

(a) Number of students who obtained 8 or more marks = 3 + 4 = 7.
(b) Number of students who obtained less than 4 marks = 3 + 2 + 4 = 9.

(c) The highest marks, i.e., 9 marks, is obtained by the 4 students.

Example 2: The data given below shows the favourite subjects of 30 students of class VI.
Maths, History, Maths, Art and craft, Maths, Science, Art and craft, Maths, History,
Science, Maths, Art and craft, Maths, Science, Maths, Science, Art and craft, Maths,
Science, Maths, Maths, History, Science, Science, Art and craft, Science, Maths, Science,
Art and craft, Maths
(a) Arrange the data in a table using tally marks.
(b) Which is the most favourite subject of the students?

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