Page 250 - Artificial Intellegence_v2.0_Class_11
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Perform the following steps to construct a Pie Chart:
1. Find the percentage of each category out of the whole by dividing each value by the total value and multiplying
by 100.
Storybooks Fiction Murder Mystery Comic Books Self-help Books
Total=85 30/85*100 20/85*100 25/85*100 10/85*100
=35% =24% =29% =12%
2. Find the central angle for each category using the formula:
Value of the component
× 360°
Total value
Storybooks Fiction Murder Mystery Comic Books Self-help Books
Total=85 30/85*360 20/85*360 25/85*360 10/85*360
=126° =85° =106° =42°
3. Draw a circle of any radius.
4. Draw a horizontal radius in the circle.
5. Starting with the horizontal radius, draw radii, making central angles corresponding to the values of the respective
categories.
6. Repeat the process for all the categories.
No. of books read in a month
Self-help books
12%
Fiction Fiction
35%
Murder Mystery
Comic Books
29% Comic Books
Self-help books
Murder Mystery
24%
It is easy to understand from the above graph that the person likes to read fiction books the most. The advantages of
pie charts are:
• They can condense a large dataset in visual form.
• They can be visually simpler than other types of graphs.
• They visually depict facts as an element of a whole, which can be an effective communication tool for even an
inexperienced audience.
• They allow the audience to see a data comparison at a glance, allowing them to perform an immediate analysis.
248 Touchpad Artificial Intelligence (Ver. 2.0)-XI

