Have you ever heard someone say that there was a certain percent chance of something happening, and wondered exactly how accurate that was? If they say there was, say, a "99.9% chance", is that not just a cop out in case they happened to be wrong? How accurate are people when they say this stuff? Wan to find out? Help by simply filling out the form below every time you hear somebody use a percent guess, marking whether the thing happened or not, and watch the spreadsheet to see the results.
