So 15 out of 64, we'll have only two uppercase. If we continue with one uppercase, we'll see that we have 123456. So 123456. So six out of 64 will only have one uppercase letter. And finally, just like there's a one out of 64 possibility of having all uppercase letters, there's a one in 64 possibility of having no uppercase letters. And if we plot this, if we create a bar graph of this distribution, we get a normal distribution.