Do I need a graphing calculator for a 2 year Epi program, or would a regular old scientific calc work? I'm assuming it's the latter since the only math seems to be biostats and some basic algebra..
If you plan to take upper level biostats, a graphing calculator might help for some regression work, but you'll probably be doing most of that work with SAS (a computer program). If you already have a scientific calculator, use it, if you already have a graphing calculator, use it. Don't buy a new one, though.