When the sample size, and let's say the sample size over here is going to be equal to n. And actually over here, I'm going, well I'll stay in green right now. So what is that going to look like? Well it's going to be some distribution. And now we're assuming that n is a fairly large number. So this is going to be a normal distribution, or can be approximated with a normal distribution. Notice I drew it having a, let me shift it over a little bit. I'm going to draw it a little bit narrow, because we learned from the central limit theorem that the standard deviation of this thing, that the standard deviation, so let me draw the mean.