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Bar Graphs

Key Concepts

  • Draw bar graphs and solve problems by using bar graphs

Introduction 

A bar graph is a graph that shows complete data with rectangular bars.  

We can represent bar graphs in two parts.​ 

  1. Vertical bar graph​ 
  2. Horizontal bar graph​ 
Vertical bar graph​ and Horizontal bar graph​ 

We can use a table to make a bar graph.​ 

Consider the given table. 

fav activities

First, we have to write a title and then label the graph. 

Here, the title is Favorite Activities, and the labels are ‘Activity’ and the ‘Number of Students.’ 

Favorite Activities,

Then color the boxes for each activity to match the data. 

The length of the bar represents the number of students who like each activity. 

 length of the bar

Example: 

Draw the bar graph for the table given below. 

Draw the bar graph

Solution: 

By using the table, the required bar graph is given below. 

Example: 

Observe the bar graph and prepare the required table. 

Solution: 

Observe the bar graph, and the required table is given below. 

Observe the bar graph

Example: 

From the given bar graph, write the number of balls used in tennis. 

number of balls used in tennis.

Solution: 

From the above bar graph, we can tell those 7 balls are used in tennis. 

Exercise

  • Create the bar graph for the given table.
Create the bar graph for the given table.
  • Write the number of people who speak English.
Write the number of people who speak English.
  • The number of people younger than 30 is ________.
The number of people younger than 30 is
  • Create the bar graph for the given table.
Create the bar graph for the given table.
  • Prepare a table for the given bar graph
Prepare a table for the given bar graph
  • Create a graph for the given table
Create a graph for the given table
  • Create a table for the given bar graph.
Create a table for the given bar graph.
  • The number of people who like bananas are ________.
The number of people who like bananas are
  • Create the bar graph for the given table.
Create the bar graph for the given table.
  • How many children like drums?
number of balls used in tennis.

What we have learned

  • Use a table to make a graph.
  • Write the title and label the graph.
  • Draw the bar graph.

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