And let's just delve into it to see what we're actually talking about. All right, and I'll do it in this light. Let me do it in, I'll start in blue. 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.