Yeah sorry, that was worded a bit clumsily. I meant this table:
Miss: 24.6%
Dodge: 5.6%
Parry: 0%
Glancing blow: 40%
Block: 0%
Critical hit: ~10%
Normal hit: 19.8%
From Oto's sticky post.
And this
If the difference between the mob's Defense Skill (level * 5) and your Weapon Skill ([level * 5] + additional bonuses) is less than or equal to 10 then the formula for calculating your base miss rate against that mob is:
5% + (Defense Skill - Weapon Skill)*.1%
dual-wielding: 24% + (Defense Skill - Weapon Skill)*.1%
If the difference between the mob's Defense Skill and your Weapon Skill is greater than 10, then the formula for calculating your base miss rate against that mob is:
7% + (Defense Skill - Weapon Skill - 10)*.4%
dual-wielding: 26% + (Defense Skill - Weapon Skill - 10)*.4%
Applying these formulas gives the following base miss rate for a Level 60 character with a 300 Weapon Skill:
* v. Level 60 mob: 5.0% / dual-wield: 24%
* v. Level 61 mob: 5.5% / dual-wield: 24.5%
* v. Level 62 mob: 6.0% / dual-wield: 25%
* v. Level 63 mob: 9.0% / dual-wield: 28%
Thus if you are a Level 60 character with a Weapon Skill of 300, you need +9% chance to hit to never miss a shot against a Level 63 boss (or skull mob).
From
http://vanilla-wow.wikia.com/wiki/HitHow is that derived? Does it come directly from the source code or was it determined experimentally or some other way?