Google has changed its strategy with regard to how much and over which media it invests in advertising. The following table shows Google€™s marketing budget in millions of dollars for 2008 and 2011 (The wall Street Journal, March 27, 2012).

a. Construct a side-by-side bar chart with year as the variable on the horizontal axis. Comment on any trend in the display.
b. Convert the above table to percentage allocation for each year. Construct a stacked bar chart with year as the variable on the horizontal axis.
c. Is the display in part (a) or part (b) more insightful?Explain.

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2008 26.0 4.0 0.0 2011 123.3 20.7 69.3 Internet Newspaper, etc Television