Section 2 ~ Picturing Distributions of Data Objective



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Pie chart:
When the wedge sizes represent simple fractions, it’s easy to create a pie chart, but when there are numerous categories, a pie chart may not be the best way to represent the data.





Example 2:

Create a pie chart from the essay grade data in section 3.1. Each sector is 10 degrees.




Grade

Frequency

A

4

B

7

C

9

D

3

F

2

Total

25


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