Any Probability/Statistic majors among us?

[the Langolier]

Quite right; an important assumption I used is that each enemy has an equal chance of being chosen. Jarulf summarized the proceedure the game uses in his guide, however it doesn't have details that would indicate the particular method used. I'm also certain that Jarulf himself no longer remembers the algorithm the game uses. I duplicated his work (random generation) and used an algorithm would populate a new list of enemies without gaps each time, getting the same results he did. That leads me to think that each enemy has an equal chance of being picked each time (subject to the pRNG, of course).

In any case, I'm happy with the results:)