Pelz (aycalaguas213)

Race #45

View Pit Stop page for race #45 by aycalaguas213Ghost race

View profile for Pelz (aycalaguas213)

Official speed 70.12 wpm (63.49 seconds elapsed during race)
Race Start February 2, 2020 4:33:21am UTC
Race Finish February 2, 2020 4:34:25am UTC
Outcome No win (3 of 5)
Accuracy 97.0%
Points 74.79
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.