View Pit Stop page for race #1276 by wl23 — Ghost race
View profile for Sapphire (wl23)
| Official speed | 70.86 wpm (62.83 seconds elapsed during race) |
|---|---|
| Race Start | January 11, 2018 12:10:42pm UTC |
| Race Finish | January 11, 2018 12:11:45pm UTC |
| Outcome | Win (1 of 4) |
| Accuracy | 95.0% |
| Points | 75.58 |
| 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. |