Independent events given by odds: probability that all, two or most of them happen
This type of question, asked 4 times: 10 May 2024 S1, 10 May 2024 S2, 14 May 2024 S1, 16 Apr 2026 S1. All 4 questions below, oldest first.
Try each one first, then open its answer.
Question 1
10 May 2024 S1
147Three critics: odds in favour 2:5, 3:4, 4:3. Probability majority is in favourTap an option to check your answer.
Question 2
10 May 2024 S2
121The three ships namely A, B and C sail from India to Africa. If the odds in favour of the ships reaching safely are and respectively, then probability of all of them arriving safely isTap an option to check your answer.
Question 3
14 May 2024 S1
131Three critics review a book. For the three critics the odds in favour of the book are 2:5, 3:4 and 4:3 respectively. The probability that the majority is in favour of the book, is given byTap an option to check your answer.
Question 4
16 Apr 2026 S1
97Three ships A, B, C sail from England to India. If the odds in favour of their safe arrival are 2:5, 3:7 and 6:11 respectively, then the probability that the exactly two ships arrive safely isTap an option to check your answer.