If I were to try to make the standard deviation smaller, we'll see that the whole thing just gets a little bit tighter. Let's make it 6. And all of a sudden, this looks a little bit tighter curve, we make it 2, it becomes even tighter. And just so you know how I calculated everything, and I really want you to play with this and play with the formula and get an intuitive feeling for this, the cumulative distribution function, and think a lot about how it relates to the binomial distribution, and I covered that in the last video. To plot this, I just took each of these points. I went to plot the points between minus 20 and 20, and I just incremented by 1. I just decided to increment by 1.