>>16109108How can you not understand it? This is simple!
Assume that you have Destiny Knot.
Now, at first, random IV is selected: HP, Att, Def, Sp.Att, Sp.Def or Speed.
This stat is NOT passed from the parents, it's generated randomly, between 0 and 31.
for every other stat, you have 100% to be passed from parents: 50% chance to have it from parent A, and 50% from the second parent.