How do you interpret charts and tables?

This 18-question quiz will challenge you to answer questions about charts, graphs, and tables. Please answer to the best of your ability!
You should not need a calculator to answer any questions. You will see your results at the end of the quiz.
Click next when you're ready.
This quiz contains data that has been fabricated for this exercise. More information about this quiz, including frequently asked questions and a PDF version, is available here.