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Racer Ryan (rynakk)
Race Number 589
Date Sun, 19 Jul 2020 07:38:48 +0000
Speed 99 WPM Try to beat?
Accuracy 96.5%
Rank 3rd place (out of 5)
Opponents jenaxu_al (5th place) lwycsrc (1st place) tung1x45 (4th place)

Text typed:

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.
Fundamentals of Probability: A First Course (book) by Anirban DasGupta (see stats)

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