Classical probability theory assumes an equal likelihood for all outcomes. For example, if you were to flip a coin, there's an equal change of it landing on "heads" or "tails." Microsoft Excel offers ...

Let's say I roll two dice, a d8 and a d12… How do I calculate the probability that the d12 will a) win, b) be equal, c) lose? There is probably a name for this equation, but my google-fu is lacking.