Using pie charts

Pie charts, although ideal for certain kinds of data, many times are inappropriate.…Nevertheless, when you're using pie charts, you need to make some adjustments to…them, and the two pie charts that we see here certainly are lacking in…explanatory information.…Let's point out a couple of deficiencies, particularly with regard to 3D pie charts.…As you look at the chart on left here, which is reflective of the data above it,…for the Domestic row, we see the breakout for the first six months.…

Now, without looking at the numbers and looking at the wedges, is the green wedge…bigger than the blue wedge to the left, in other words, this one here,…the one over there?…The green wedge is March.…The blue one over there is May.…You look at the numbers: March is 125, May is 140.…Can you see that difference?…I pretty much doubt it? Most people can't.…And depending upon it the order in which these colors appear here, you might…or might not be giving precedence to one wedge over another without necessarily knowing it.…