Answer: 0.6.
- A 0.4
- B 0.5
- C 0.6
- D 1
Correct answer: C. 0.6
Explanation: P(A') = 1 - P(A) = 1 - 0.4 = 0.6.
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