Hello!
I need a little help from the math geeks to compute the average for this:
Roll [X] [K]sided dice, keep the best [N].
For any value of X, K, N.
So, 4d6b3 is an example of this formula (incidentally it is also the typical 3.5 chargen algorithm), and it averages, to my knowledge, around 12.
I'm not really interested in numeric solutions (i.e. run a simulation 10^6 times, take the average), I can do that myself. I'd like to know how to find the formula for the averages.
Thanks in advance, Pasko