These are the only two possibilities, so they have to add up to 100%, or they have to add up to one. Now let's say that you are going to take six attempts. And what we're curious about, what we're curious about is the probability of exactly, exactly two scores, two scores in six attempts. In six, in six attempts. So let's think about what that is. And I encourage you, if you get inspired at any point in this video, you should pause it and you should try to work through what we're asking right now. So this is what we wanna figure out.