View Pit Stop page for race #984 by professor_l — Ghost race
View profile for Elle (professor_l)
| Official speed | 109.93 wpm (40.50 seconds elapsed during race) |
|---|---|
| Race Start | September 17, 2017 10:42:00pm UTC |
| Race Finish | September 17, 2017 10:42:40pm UTC |
| Outcome | Win (1 of 3) |
| Accuracy | 97.0% |
| Points | 117.26 |
| Text | #3640570 (Length: 371 characters) Property (c) is known as countable additivity. It is not something that can be proved, but it is like an assumption or an axiom. In our experience, we have seen that operating as if the assumption is correct leads to useful and credible answers to many problems, so we accept it as a reasonable assumption. Not all probabilists agree that countable additivity is natural. |