[taejo]

That's not necessary. If we assume that both juries and judges pick the correct verdict with a certain probability independent of what the correct verdict is, then all that is required that the jury has a higher probability of being wrong than the judge.

[mystikal]

Yep, makes sense. So is there some kind of data to back up the claim that a jury is wrong more often? Perhaps verdicts are more likely to be overturned for juries?