What are set operations in probability?
Set operations in probability refer to the ways we can combine or relate different sets of outcomes, such as unions, intersections, and complements.
Can you explain the union and intersection of sets?
Sure! The union of two sets A and B, denoted as A ∪ B, includes all elements that are in A, in B, or in both. The intersection, denoted as A ∩ B, includes only the elements that are in both A and B.
How do these operations apply to probability?
In probability, the union of events represents the probability of either event occurring, while the intersection represents the probability of both events occurring simultaneously.
Can you give an example with numbers?
Absolutely! If P(A) = 0.5 and P(B) = 0.3, and A and B are independent, then P(A ∪ B) = P(A) + P(B) - P(A ∩ B) = 0.5 + 0.3 - (0.5 * 0.3) = 0.74.
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