The discussion revolves around the calculation of the union and intersection of two events, A and B, in the context of hospital emergency visits. Participants are trying to understand the definitions and calculations associated with A ∩ B (the intersection) and A U B (the union).
There is an active exploration of the calculations, with some participants providing insights into possible errors in the original data. Multiple interpretations of the calculations are being discussed, particularly regarding the inclusion of specific values.
Participants note discrepancies between their calculations and the results presented in a book, suggesting that there may be missing information or errors in the original problem setup.
The text in the first image describes the events A and B. In words, what does the event A ∩ B mean? What does the event A U B mean?robax25 said:
The ##242## should be added. It looks like a typo.robax25 said:
This is misreading their answer. They are saying that the count of ##A \cup B ## is 5292+953-195, not ##A \cap B##.robax25 said: