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.

因此，为了使其在数学上可操作，我们假设对将投票给 A 的人进行抽样相当于对 0 进行抽样，对将投票给 B 的人进行抽样相当于对 1 进行抽样。