Answer: 1/4.
- A 1/2
- B 1/4
- C 3/4
- D 2
Correct answer: B. 1/4
Explanation: P(HH) = P(H) × P(H) = 1/2 × 1/2 = 1/4 (independent events).
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