View Pit Stop page for race #380 by ashleycha — Ghost race
View profile for Ashley (ashleycha)
| Official speed | 63.49 wpm (70.12 seconds elapsed during race) |
|---|---|
| Race Start | March 20, 2018 8:57:37pm UTC |
| Race Finish | March 20, 2018 8:58:47pm UTC |
| Outcome | No win (2 of 3) |
| Accuracy | 95.0% |
| Points | 67.72 |
| 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. |