PIe+Charts

=__Pie charts__=

What are pie charts?
I am sure that all of you are familiar with pie charts. A pie chart, is basically a circular chart divided to show proportion. The whole chart makes up a full circle.

__DATA__
*The totals are not full due to rounding up.
 * ~ Group ||~ Seats ||~ Percent (%) ||~ Central angle (°) ||
 * EUL || 39 || 5.3 || 19.2 ||
 * PES || 200 || 27.3 || 98.4 ||
 * EFA || 42 || 5.7 || 20.7 ||
 * EDD || 15 || 2.0 || 7.4 ||
 * ELDR || 67 || 9.2 || 33.0 ||
 * EPP || 276 || 37.7 || 135.7 ||
 * UEN || 27 || 3.7 || 13.3 ||
 * Other || 66 || 9.0 || 32.5 ||
 * Total || 732 || 99.9* || 360.2* ||

=
Notice how the various percentages are equal to their sizes on the chart. Thus, to find the size of the sectors, you can use this formula: 360 o X __%. For example, using the "Other group", we can see that, 360 o X 9% = 32.5 o .======

Why use pie charts?
Pie charts are usually unpopular among scientists and statisticians, as they are deemed as inferior to bar graphs. However, for comparing a category with the total, for example, comparing EUL to the total, then, a pie chart is more useful.