View Pit Stop page for race #389 by fredizzimo — Ghost race
View profile for Fred (fredizzimo)
| Official speed | 46.81 wpm (95.11 seconds elapsed during race) |
|---|---|
| Race Start | September 20, 2017 7:24:31am UTC |
| Race Finish | September 20, 2017 7:26:06am UTC |
| Outcome | No win (4 of 5) |
| Accuracy | 94.0% |
| Points | 49.93 |
| 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. |