View Pit Stop page for race #560 by vt85yang — Ghost race
View profile for Victor (vt85yang)
| Official speed | 41.87 wpm (106.33 seconds elapsed during race) |
|---|---|
| Race Start | December 25, 2017 4:41:13pm UTC |
| Race Finish | December 25, 2017 4:42:59pm UTC |
| Outcome | Win (1 of 5) |
| Accuracy | 94.0% |
| Points | 44.66 |
| 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. |