All right, so if this is at 10, let me go back to my drawing tool. So this calculation right here, let me do this calculation. Actually, even better, let me do this calculation right here. All right, so what's the probability that I have 2 left steps, and if I have 2 left steps, I took a total of 10 steps, so I'm going to have 8 right steps, and that puts me 6 to the right. So that's this point right here. So what's that probability? How do I figure this out using the probability density function?