He has chosen the ticket 0 for R. So we're assuming he's paying the $5 to play and he picks the ticket 0 for R. So let's say we define a random variable X. Let's say that this random variable is the net profit from playing this lottery game. What is the expected from playing 0 for R? So M is particular ticket right over here. So let's just say X is the random variable, it's the net profit from playing this ticket. What I want to think about in this video is what is the expected value of that? What is the expected net profit from playing 0 for R?