If we have infinite instances of me casting Frostbolt with what should be 99% hit (lets not include the 15 spell resist thats irremovable), 99% of them would hit with 1% missing, else it’s not 99%.
Obviously we can’t have a sample size with infinite instances. What would be a good number to base it off of? Mine is roughly 2500 Frostbolts. My question has already been answered too btw.
99% hit…
1st cast. 1% chance to miss
2nd cast. 1% chance to miss
…
100th cast. 1% chance to miss
out of 100 casts…you could miss with none…all…or some…
just because you have a 99% chance to hit means nothing other then each cast you have a lower chance of not hitting. Pray to RNGeesus for the luck you need or else you may have a “high then normal” miss rate…
I regularly run 1% under melee hit cap in raids, because it’s only a 0.60% chance to miss(with a 2h), and using a hit item somewhere else would be a significant statistical downgrade.
Still, I have had a couple raids where I’ve missed a few times throughout them, even though I don’t make that many attack swings per boss fight. Doesn’t happen often at all, but it can and does.
Boss fights are often so short in Classic, that wild RNG occurrences are the norm. A lot of performance factors during a fight, for that reason, are totally outside of your control. Things don’t last long enough to “average out.”
It’s Blizzard that’s categorizing both outcomes as “resist”, not the logs. It was in WotLK or so that Blizzard finally separated them.
The level-based spell resistance that mobs get is not reducible. I had always heard about it being +8 resistance per level, although someone up above said it could be +5. Either way, spell pen won’t work on that. It’s only if the mobs have innate resistance that the spell pen will actually work.
1% on average, if you could cast fbolts into a training dummy for a few hours, you would log about 1%.
Except for a few fights, most boss fights don’t last long enough to make sure you get 1% per fight. Every single cast has that 1%, and you need a large amount of casts to ensure your average sits at 1%.
On short fights your variance will be higher, but that also means sometimes you log 10% more crits.