From the Oil-price.net Web site, we obtained the graph in the next column showing crude oil prices, in dollars per barrel, for a 1-month period beginning October 12, 2008.
a. Cover the numbers on the vertical axis of the graph with a piece of paper.
b. What impression does the graph convey regarding the percentage drop in oil prices from the first to the last days shown on the graph?
c. Now remove the piece of paper from the graph. Use the vertical scale to find the actual percentage drop in oil prices from the first to the last days shown on the graph.
d. Why is the graph potentially misleading?
e. What can be done to make the graph less potentially misleading?

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Oil Dashboard November, Wednesday 12 2008 Crude Oil $55.41 0.09 0.16% 19:11 PM EST 2008.11.12 80 70 60 50 Oct 12 Nov 1q y Sy