>>16106554You have 1/6 chance for not passing Sp Attack, and if you don't pass it, you have (1/2) * (1/2) chance for passing the right Def and Hp IV.
So you have 1/(6*2*2)=1/24=0.041 (4'1%)
If you want hidden ability, i think it's 1/3, so 1/24*3=0.01333 (1.3%)
After 3-4 boxes you should have it.
