5. Choosing a Data Display
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Which data display shows data as parts of a whole?
Example Answer:
Consider the given data set.
| Colors of Cars That Drive by Your House | |||
|---|---|---|---|
| White | 25 | Green | 3 |
| Red | 12 | Silver/Gray | 27 |
| Yellow | 1 | Blue | 6 |
| Black | 21 | Brown/Biege | 5 |
25+12+1+21+3+27+6+5 = 100Cars We can now find the angle measures.
| Subject | Angle Measure | Simplify |
|---|---|---|
| White | 25/100*360^(∘) | 90^(∘) |
| Red | 12/100*360^(∘) | 43.2^(∘) |
| Yellow | 1/100*360^(∘) | 3.6^(∘) |
| Black | 21/100*360^(∘) | 75.6^(∘) |
| Green | 3/100*360^(∘) | 10.8^(∘) |
| Silver/Gray | 27/100*360^(∘) | 97.2^(∘) |
| Blue | 6/100*360^(∘) | 21.6^(∘) |
| Brown/Biege | 5/100*360^(∘) | 18^(∘) |
These angle measures allow us to divide a circle into four sections with their corresponding sizes. Then we can label each section and title the circle graph. Let's do it!
Since a bar graph allows us to show data in different categories, we used it previously to display the given data set.
