 And then the probability of having exactly one girl is wouldn't it be one-half-two? Okay. As well. Alright. And what's your exponent going to be on that first one-half? One. Tell me why. Because we're exactly one girl. Okay. And then it's going to be half again. Okay. To the third because of the group, right? Or... What do you guys think? Do you agree with that? I think it'd be two. The exponent would be two on the second part. Okay, explain. Because for the probability of failure, it'd be n minus r. And since n is equal to three and r is one, that would be three minus one, which equals two. What do you think about that? Yeah. So if you have one girl, how many boys do you have to have if the total's three? Two. Yeah. So that's why your exponent's going to be two on that second-half. Okay? Okay.