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Pie Chart

A pie chart  gives the same information as a bar chart, except in a circular shape. Some people prefer the look of pie charts over bar charts. However, studies have shown that some people have difficulty comparing relative size of wedges. Look at the pie chart below. Does the size of ACT look twice the size of MGT, and four times the size of MKT?

\epsfig{file=piechart.epsf, width=4in}