Line Graph
We can represent the data in a line graph in which the frequencies are along the y-axis and the
variables are along the x-axis. We can choose a suitable scale so that the
entire data is accommodated in the space available.
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The line graph
is used to show the changes and the relationship between quantities.
Workout Examples
Example 1: Show the following information
in a line graph.
Class
|
6
|
7
|
8
|
9
|
10
|
No. of students
|
125
|
160
|
180
|
75
|
50
|
Solution: Line graph,
Example 2: Study the following line graph
and answer the following questions.
i. Find
the number of students in class IX.
ii. What
is the difference between number of students in class X and XII?
iii. Which
class has there maximum number of students?
iv. Which
class has the minimum number of students?
v. Find
the total number of students from class VI to XII.
Solution: From of above line graph,
i. Find the
number of students in class IX.
Solution:
The number of students in class IX = 12
ii. What is the
difference between number of students in class X and XII?
Solution:
The number of students in class X = 12
The
number of students in class X = 16
∴ Difference = 16 –
12 =4
iii. Which class
has there maximum number of students?
Solution:
Class XII has maximum number of students.
iv. Which class
has the minimum number of students?
Solution:
Class CI has minimum number of students.
v. Find the
total number of students from class VI to XII.
Solution:
Total no. of students = 6 + 12 + 10 + 12 +
12 + 14 + 16
= 82
You can comment your
questions or problems regarding the line graphs here.
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