Pie Chart Examples
Example 1: The given pie chart shows the subject of interest of each student in a class.
Answer the following question concerning the given pie diagram.
- If 30 students’ subjects of interest are history, how many total students were surveyed?
- Which subject is liked the most?
- Which subject is disliked the most?
Solution:
1. According to the given question, 8% of the total number of students is 30. i.e. (8/100) x Total = 30
Therefore, Total = 30 x (100/8) = 375
Hence 375 students were surveyed.
2. According to the given pie chart, science is liked the most.
3. According to the given pie chart, history is disliked the most.
Example 2: For a science camp, students from different states have enrolled. Construct a pie chart for the given table:
States |
Number of students |
---|---|
West Bengal |
10 |
Assam |
5 |
Tamil Nadu |
5 |
Gujarat |
10 |
Karnataka |
10 |
Solution:
Step 1: The first step requires us to jot down the available data into tabular form as follows:
West Bengal
Assam
Tamil Nadu
Gujarat
Karnataka
10
5
5
10
10
Step 2: The next task is to calculate the sum of all the given data.
Here, the Sum of All Data = (10 + 5 + 5 + 10 + 10) = 40
Step 3: Now, the next task is to calculate the percentage of each sector. We need to divide each sector value by the sum or total and then multiply it by 100.
West Bengal
Assam
Tamil Nadu
Gujarat
Karnataka
(10/40) × 100
= 25%
(5/40) × 100
= 12.5%
(5/40) × 100
= 12.5%
(10/40) × 100
= 25%
(10/40) × 100
= 25%
Step 4: Next step is to calculate the degrees corresponding to each slice. The values can be calculated as:
West Bengal
Assam
Tamil Nadu
Gujarat
Karnataka
(10/40) × 360
= 90
(5/40) × 360
= 45
(5/40) × 360
= 45
(10/40) × 360
= 90
(10/40) × 360
= 90
Step 5: Now, with a protractor’s help, we will measure each angle from a single point or central point and draw the circle’s sectors. The resultant pie chart will be:
Example 3: A pie chart is divided into four parts, and the values are given as x, 3x, 4x, and 4x. Find the value of x in degrees.
Solution:
As it is known that a pie chart has 360°. Therefore, if all the angles are added, it will give 360°.
x + 3x + 4x + 4x = 360°
12x = 360°
x = 30°
Pie Chart
A Pie Chart is a pictorial representation of the data. It uses a circle to represent the data and is called a Circle Graph. In a Pie Chart, we present the data by dividing the whole circle into smaller slices or sectors, and each slice or sector represents specific data.
In this article, we will learn about Pie Charts, Steps to Create Pie Charts, Examples, and Others in detail. The image added below shows a pie chart.
Table of Content
- What is Pie Chart?
- Pie Chart Definition
- Types of Pie Chart
- Pie Chart Examples
- Pie Chart Formula
- How to Make Pie Chart
- How to Read Pie Chart
- Pie Chart Vs Bar Graph
- Pie Chart Advantages
- Pie Chart Disadvantages
- Uses of Pie Chart
- Pie Chart Examples
- What is Population Pie chart?
- Pie Charts Questions