The following table lists the average price (as defined by the U.S. Energy Information Administration) per gallon of unleaded regular gasoline in each of the seven regions of the United States. These averages were calculated from the weekly averages for the period June 14, 2010 through June 6, 2011.
Average Price per Gallon
Region (in dollars)
New England.......... 3.152
Central Atlantic......... 3.161
Lower Atlantic......... 3.038
Midwest.......... 3.085
Gulf Coast.......... 2.973
Rocky Mountain....... 3.032
West Coast.......... 3.282
Draw two bar graphs for these data, the first without truncating the axis that represents price, and the second by truncating this axis. In the second graph, mark the prices on the vertical axis starting with $2.95. Briefly comment on the similarities and differences of the two bar graphs.