1. Why do you think there are many different types of charts and graphs? 2. What are the main differences among line, bar, and pie charts? When should you use one over the others? 3. Why would you use...

1. Why do you think there are many different types of charts and graphs?

2. What are the main differences among line, bar, and pie charts? When should you use one over the others?

3. Why would you use a geographic map? What other types of charts can be combined with a geographic map?

4. Find two more kinds of charts that are not covered in this section and comment on their usability.