Answer: P(A ∪ B) = 1.
- A P(A ∩ B) = 1
- B P(A ∪ B) = 1
- C P(A) = P(B)
- D A and B are independent
Correct answer: B. P(A ∪ B) = 1
Explanation: Exhaustive events: A and B together cover the entire sample space. P(A ∪ B) = 1.
Venn diagram of the universal set U with events A and B, showing the intersection (A and B), the parts unique to each event, and the complement region outside both.
Concept context
Chance, events, conditional probability, and Bayes theorem