You find AUB by looking at set A and set B and discarding one of each item that appears in both sets. Lump them all together, and that’s the union. But you want roster (set builder) notation
P (A∩B) = Probability of happening of both A and B. From these two formulas, we can derive the product formulas of probability. P (A∩B) = P (A/B) × P (B) P (A∩B) = P (B/A) × P (A) Note: If A and B are independent events, then P (A/B) = P (A)
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So, in statistics, what does P AUB mean? P(A)B is the probability that both events A and B occur. Essentially, ‘and’ means ‘and.’ Because U is the union, P(A U B) refers to the probability of either
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