What graph would be the best for this problem:
The following are prices (in dollars) 2004 automobiles, as listed in a sale ad in the automobile section of the newspaper: 12,997 14,891 18,666 21,799 17,495 17,266 21,517 14,414 14,257 15,634 15,734 27,825 28,015 19,514 14,182 19,135 19,555 12,333 7,700 9,898
Would you use a bar graph for this as well or a circle?
Bar graph, definitely.
Circle graphs show how a whole is broken down into its parts -- like a budget.