Even with 100 players, there must have been very few with 5 ball potential, no? Well, I am guessing 5 since you said 5%.
Of course. But at the same time, there were more than 40 2-ball players. :)
Furthermore, there was only one lucky guy who scouted two 5-ball players, nobody else scouted more than one, even out of 14 or 15 players.
Of course, when I say that we have a 40% chance of scouting a 2-ball potential player, I can safely assume that that number can range from 35% to 45%.
5%, however, is a very low figure and therefore can vary wildly. Nevertheless, I can tell you that out of 10 analyzed drafts, in 8 cases the rate of 5-ball players was well below 10%. The only real exception to this rule is the one I already mentioned, with two 5-ball players scouted out of 10.
Additionally, the % I reported seem to fit a smooth distribution. Judging from the slope of the right tail of said distribution, I would say that the real 5-ball % may even be lower...