Theoretical probability?

this isn’t really pertaining to anything i’m working on, just curious about it. theoretical probability, for those of you who don’t know the term, means that if you roll a die it will land on each number only one time in six rolls with no exceptions, where in experimental probability it could land on any one of them every time to not at all. i’m wondering how to do the former in AS. i’ve considered making an array of every possibility, then choosing and removing them at random. just wondering if there’s a better way.