You can't calculate a mean between A and B and all of that. Those are letters. They're not numbers. So to make it manipulatable mathematically, we're going to say sampling someone who's going to vote for A is equivalent to sampling a 0. And sampling someone who's going to vote for B is equivalent to sampling a 1. And if you do that with a Bernoulli distribution, we learned in the video on Bernoulli distributions that the mean of this distribution right here is going to be equal to P. And it's a pretty straightforward proof for how we got that. So the mean of this distribution, which will actually be not a value that this distribution can take on, is going to be someplace over here.