Also, and not to insult mathwingers like MajorJuggler here, I don't put much stock in that stuff for two reasons: this game is not a game of averages, but of variances, and i can't roll .37 of an evade. I either evade one damage or I don't. Someone can quote me all the numbers they like, but if we joust and my Defender rolls (after modifications) 3-4 hits at range 1 and lands most of them, then takes 3 or so hits but evades 2 of them to win the joust and cake the other guy then my opponent's still down a ship and my Demon Defender is still flying. All the statistical averages in the world didn't save that poor sod back there.
You're right, you can't roll.37 of an evade. That's the average based on that dice scenario. Basically, if you rolled that scenario 100 times, you'd get that evade 37 times. The rest you'd get nothing.
Yes. I'm aware of that. But really you don't need them to come up all the time anyway. And again, I don't let averages dictate my play because you can't really count on them.