Probability: past paper questions
Real questions on probability
The newest 20 of 72 written questions. Open one to see it on the real paper.
- 4024/11 · October/November 2025 · Q2b[1]
1-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/12 · October/November 2025 · Q12a(i)[1]
1-mark “Complete” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/12 · October/November 2025 · Q12a(ii)[2]
2-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/12 · October/November 2025 · Q12b[2]
2-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/21 · October/November 2025 · Q17b[3]
3-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/13 · May/June 2025 · Q10a[1]
1-mark “Explain” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/13 · May/June 2025 · Q10b[2]
2-mark question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/22 · May/June 2025 · Q13a[2]
2-mark “Complete” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/22 · May/June 2025 · Q13b[1]
1-mark question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/23 · May/June 2025 · Q8b[1]
1-mark question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/21 · October/November 2024 · Q11a[2]
2-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/21 · October/November 2024 · Q11b[2]
2-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/21 · October/November 2024 · Q11c[3]
3-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/22 · October/November 2024 · Q5a[1]
1-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/22 · October/November 2024 · Q5b[2]
2-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/22 · October/November 2024 · Q5c[3]
3-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/12 · May/June 2024 · Q13b[2]
2-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/21 · May/June 2024 · Q11a(i)[2]
2-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/21 · May/June 2024 · Q11b[3]
3-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper → - 4024/22 · May/June 2024 · Q2b(ii)[1]
1-mark “Find” question — its maths and diagrams are best seen on the paper.
See it on the paper →
What examiners said
Approximately half of the candidates could answer this part correctly. A small proportion correctly 6+2 10 showed the probability correctly as , but went on to calculate this incorrectly as . 40 40
— Examiner report, October/November 2023, 4024/21 Q8(a)(iv) (Cambridge)
Possibly due to the lack of a given tree diagram, this part was found difficult by a large proportion of candidates. Common errors were to assume the question was without replacement, or to add the 1 1 probabilities rather than multiply them. Some candidates thought the probabilities were and 7 3 7 3 rather than and . Another common error was to find the probability that the first book is 10 10 fi...
— Examiner report, October/November 2023, 4024/21 Q8(b)(i) (Cambridge)
Around three quarters of the candidates answered this correctly. Some seemed to get confused 11 11 over replacement and gave the answer as either or , while others gave the answer as 12 40 39 for the number of green balls and not the probability that the ball was green.
— Examiner report, October/November 2023, 4024/22 Q5(a)(i) (Cambridge)
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