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Example 2: The marks of 24 students out of 100 obtained in maths are given below:

65, 78, 50, 60, 80, 78, 78, 80, 65, 50, 50, 50, 78, 60, 60, 78, 80, 60, 65, 65, 50, 80, 60, 78
Make a frequency distribution table for the above data and then answer the following questions:
(a) How many students obtained 65 marks?
(b) How many students obtained marks equal to or more than 78?

(c) How many students obtained marks below 65?

Solution: Observations Tally Frequency
(Marks obtained) marks (Number of (a) 4 students obtained 65 marks.
students) (b) Since, 6 students obtained 78 marks and

50 5 4 students obtained 80 marks. Thus,
60 5 6 + 4 = 10 students obtained marks equal
to or more than 78.
65 |||| 4
78 | 6 (c) Since, 5 students obtained 50 marks and
5 students obtained 60 marks which is
80 |||| 4 below 65 marks. Thus, 5 + 5 = 10 students
Total 24 obtained marks below 65.

activity
• Open the storybook you have and read a paragraph of the story you like the most.
• List out the three, four, five and six letter words from that paragraph.
• Represent the collected data in a table using tally marks.
• Show the presentation to your classmates and ask a few questions based on
it. For example,
(a) How many letters do the maximum words have?
(b) How many words have less than 5 letters?
(c) How many words have been tabulated? etc.
You may also collect the data for different vowels used in a passage and do a
similar activity.
Practice Time 4A

1. The choices of ice cream flavours for 25 children are as follows:

Vanilla, Chocolate, Vanilla, Strawberry, Mango, Chocolate, Mango, Vanilla, Chocolate, Chocolate,
Strawberry, Mango, Chocolate, Vanilla, Mango, Strawberry, Chocolate, Vanilla, Mango, Chocolate,
Chocolate, Strawberry, Mango, Chocolate, Vanilla

(a) Prepare a table to organise the above collected data using tally marks.
(b) Which ice cream flavour is preferred by the most number of children?
2. 30 students in a section of class VI have their shoe sizes as shown in the table below:

5 4 6 8 7 4 5 8 5 6

7 4 7 5 8 5 6 7 4 8
5 7 7 6 4 5 4 5 7 4

Make a frequency distribution table for the above data and find which shoe size is the most frequent.

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