how to make a bell shaped curve?

[brad]

made a small quick and dirty program to illustrate winrate/variance and how much luck there is.

but for variance of about 400 i just used

random(1-50)*random(1-50) /2

so the max variance is 1250. (3 std dev.)

and then made it positive half the time and negative half the time.

good enough or no?

brad