So the probability that Jeremy, Jeremy catches three sunfish, the next three, three, the next three, the next three fishy catches are going to be sunfish, times $100, times, or I should say, well you're going to pay that, so since you're paying it, we'll put it as negative 100, because we're saying that this is your expected profit. So you're going to lose money there. And otherwise, so that's going to be one minus this probability, the probability that Jeremy catches, catches three sunfish. In that situation, he'll pay you $20. You get $20 there. So the important thing is, is to figure out the probability that Jeremy catches three sunfish. Well the sunfish are 10 out of the 20 fish, so at any given time he's trying to catch fish, there's a 10 in 20 chance, or you could say a 1 1 2 probability that's going to be a sunfish.