And experimental probability, we're really just trying to get an estimate of something happening based on data and experience that we've had in the past. So for example, let's say that you had, this is data from your football team and it's a couple of games or many games into the season, and you've been tabulating the number of points. You have a histogram of the number of games that scored between zero and nine points. You had two games that scored between zero and nine points, four games that scored between 10 and 19 points, or from 10 to 19 points. You have five games that went from 20 to 29 points. You had three games that went from 30 to 39 points. And then you had two games that go from 40 to 49 points.