All right, so let's think about the probability that our random variable X is equal to one. Well, actually, let me start with zero. The probability that our random variable X is equal to zero. So that would mean that you got no heads out of the five flips. Well, there's only one way, one out of the 32 equally likely possibilities that you get no heads. That's the one where you just get five, where you get five tails. So this is just going to be, this is going to be equal to one out of the 32 equally likely possibilities.