But then downloads slash normalintro.xls. And then you'll get this spreadsheet right here. And I think I did this in the right standard. But anyway, if you go on to Wikipedia, and if you were to type in normal distribution, or you were to do a search for normal distribution, let me actually get my pen tool going, this is what you would see. I literally copied and pasted this right here from Wikipedia. And I know it looks daunting. You have all these Greek letters there.