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NodeXL is a free, open-source template for Microsoft® Excel® 2007 and 2010 that makes it easy to explore network graphs.  With NodeXL, you can enter a network edge list in a worksheet, click a button and see your graph, all in the familiar environment of the Excel window.

interactive graphs for selected topics in Business Statistics, illustrate key concepts, models and relationships described in, Statistical Techniques for Business & Economics 14e by Lind, Marchal, and Wathen.

The fastest way to create stylish real-time polls using mobile devices. Poll Everywhere replaces expensive proprietary audience response hardware with standard web technology. It's the easiest way to gather live responses in any venue: conferences, presentations, classrooms, radio, tv, print - anywhere, and show results in graphs via PPT or web.