STACKED BAR GRAPH

Stacked Bar Graph

Definition Of Stacked Bar Graph

Stacked bar graph is a graph that is used to compare the parts to the whole. The bars in a stacked bar graph are divided into categories. Each bar represents a total.

Video Examples: Create a Stacked Column or Bar Chart

Example of Stacked Bar Graph

In the following example, each bar of the stacked bar graph is divided into two categories: girls and boys. Each of the three bars represents a whole. That is: about 38 students like Basket Ball, out of which 16 are girls.
example of Stacked Bar Graph

Solved Example on Stacked Bar Graph

Ques: The table shows the maximum marks scored by grade 6, 7, and 8 students in math. Which of the following is the correct stacked bar graph for the table shown?

example of Stacked Bar Graph

Choices:

A. Graph 1
B. Graph 2
C. Graph 3
D. Graph 4
Correct Answer: B

Solution:

Step 1: The values in Graph 2 matches with the values in the table given.
Step 2: So, Graph 2 is the correct stacked bar graph.

Quick Summary

Compares parts to the whole.
Each bar represents a total.
Bars are divided into categories.

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🍎 Teacher Insights

Use real-world examples to illustrate the concept, such as survey data or budget allocations. Encourage students to create their own stacked bar graphs from datasets they collect.

🎓 Prerequisites

Basic bar graphs
Understanding of data categories
Basic arithmetic

Check Your Knowledge

Q1: Which of the following is best represented by a stacked bar graph?

Temperature changes over time. Distribution of survey responses. Comparing individual student test scores. Tracking sales of a single product.

Q2: In a stacked bar graph showing the composition of a school's student body, what does the entire bar represent?

The number of students in one grade. The total number of students in the school. The number of students in a specific club. The average age of students.

Frequently Asked Questions

Q: What is the purpose of a stacked bar graph?
A: To show how a whole is divided into different parts and to compare the relative sizes of those parts across different totals.

Q: How do you read a stacked bar graph?
A: Look at the overall height of each bar to compare totals, and the height of each segment within the bar to compare the contribution of each category.