Question

you're reading an essay onthe relationship between education and income. the most effective graphic visual in such an essay is likely to be a?

Answer 1

http://images.google.com/images?q=relationship%20between%20education%20and%20income&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&sa=N&hl=en&tab=wi