4 ms·
If by "interaction term" it is meant f(a,b), then I congratulate the author of that tautology.
by andrewprock 8y ago
If by "interaction term" it is meant f(a,b), then I congratulate the author of that tautology.
- whatshisface 8y agoHidden in the parent's comment is the additional condition that f(a,b) have an expected value of zero. It's still pretty easy to prove, though.