The probability that you're less than or equal to 5, everything up there. And then when you evaluate it at minus 15 down here, it tells you the probability that you're down back here. So when you subtract this from the larger thing, you're just left with what's under the curve right there. And just to understand this spreadsheet a little bit better, just because I really want you to play with it and move the, see what happens when, if I make this distribution, the mean was minus 5, now let me make it 5. It just shifted to the right. It just moved over to the right by 5, right? Whoops.