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# Types of Graphs and Their Purposes

If you created a pie graph what particular "elements" of a Pie Graph do you want the reader to notice? What is the overall impression that you expect the reader to have from looking a pie graph?

If you created a bar graph what particular "elements" of that Bar Graph do you want the reader to notice? What is the overall impression that you expect the reader to have from looking at the bar graph?

If you created a histogram what particular "elements" of a Histogram do you want the reader to notice? What is the overall impression that you expect the reader to have from looking at the Histogram?

#### Solution Preview

Hi,

Pie charts are generally pretty weak ways to present data, but if they are used, the main element that is desirable to make obvious is the relative size of the 'slices' of pie. Overall, you want the reader to be able to see which slice of the pie is largest, which is smallest, and perhaps which slices are similar in size. This will usually be in terms of percentages (e.g., a ...

#### Solution Summary

The solution explains the main purpose of pie charts, bar graphs, and histograms.

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