I'm hoping that someone I tag at the bottom of this thread - or someone else - can help me out with something.

I'd like a way to generate a scatter plot on a cartesian coordinate system that obeys a bell curve but lets me set the standard deviation (the same would apply in both X and Y directions).

If it generates 100 "random" (fitting the standard deviation I set) points, that'd be perfect. I should be able to press a button to get a different set of 100 "random" dots.

The alternative would simply be a random number generator that obeys the bell curve and can kick out 100 (or 200, if I have to pair them) numbers that follow the standard deviation I set.

Can Excel or something else do this?