Page 181 - Math Skill - 5

Data Handling 179

Step 6: The gap between each bar should be equal.

Step 7: Write the title of the bar graph.

Let us learn through examples.

Let’s Attempt

Example 1: Two hundred students of 4 and 5 classes were asked their favourite colour
th
th
name so as to decide upon what should be the colour of their school building. The
results are shown in the following table. Represent the given data on a bar graph.

Favourite Colours Blue Yellow Red Green Orange
Number of Students 41 22 36 47 54

Solution : Start the scale at 0. The greatest 60
value in the data is 54, so end the 50
scale at a value greater than 54, such
as 60. Use equal divisions along the 40
axes, such as increments of 10. You 30
know that all the bars would lie 20 41 22 36 47 54
between 0 and 60. We choose the No. of students 10
scale such that the length between
0 and 60 is neither too long nor 0
too small. Yellow Red Green Orange
We then draw and label the graph Blue
as shown below. Favourite colours

Exercise 14.2

1. Read the bar graph which shows the number of books sold by a bookstore during five
consecutive years and answer the following questions.

(a) How many books were sold in 2018, 700
2019 and 2020 in total? 600

(b) In which year 500 books were sold? 500
(c) In which year fewer than 300 books 400
No. of books 200 250 500 400 300 700
were sold? 300

100

0
2016 2017 2018 2019 2020
Years