Wrestling Evade Chance, Eval, Anat (how it works?) and Other Such questions!

Hi all. Having trouble finding answers to a few questions - if anyone can help?

1. wrestling 100 gives you a 50% chance to evade (when unarmed) just like 100 eval int + 100 anatomy gives you a 50% chance to evade (does the later (eval+anat) also require you to be unarmed to to get that evade chance?)

2. i noticed that warriors fighting each other don't always hit, is there a formula for how warriors get evade chance in melee combat? (or rather: which skills help a warrior evade hits?)

3. eval + anat 100 give a 50% evade chance, what does 80 eval and 80 anat give? is there a chart that shows evade chances depending on skill here?

wrestling 100 gives a 50% evade chance but less wrestling gives a less evade chance (not sure the chart numbers) but would 80 wrestling, 80 anat and 80 wrestling add up to a 50% evade chance? (or higher perhaps? if its not capped at 50?)

thanks!