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Probability of combined events: Cambridge IGCSE Mathematics (0580) practice questions
Probability of combined events (C8.3, Core) is part of Probability (Core). STEM Exam Builder holds 47 past-paper questions on it for Cambridge IGCSE Mathematics (0580), from papers set between 2010 and 2025, each with its mark scheme. 12 of them are in the sample set visitors can open in the builder.
What it covers
The questions are sorted into 8 skills; you can tick single skills in the builder:
- Probability by counting sample space cells
- Complete a tree with replacement
- Probability along one tree path
- At least one success using the complement
- Exactly one success in two independent trials
- Probability of an intersection from Venn counts
- First success on a given trial with replacement
- Complete a sample space table of sums
Questions by paper
| Paper | Questions |
|---|---|
| Paper 1 (Core, non-calculator) | 5 |
| Paper 2 (Extended, non-calculator) | 24 |
| Paper 3 (Core, calculator) | 1 |
| Paper 4 (Extended, calculator) | 17 |
Questions by level
Each question carries a level, C, B or A: the grade it is pitched at.
| Level | Questions |
|---|---|
| Level C | 10 |
| Level B | 22 |
| Level A | 15 |
Questions by year the paper was set
| Year | Questions |
|---|---|
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 1 |
| 2013 | 4 |
| 2014 | 4 |
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 6 |
Try sample questions
These questions are in the sample set anyone can open in the builder without an account. Each opens with its mark scheme on the flip side.
The link opens the builder on Probability of combined events, Paper 2. Visitors can browse the sample set; building and downloading a paper needs a plan.