Edexcel IAL · Mathematics · WST02 · The Binomial and Poisson distributions
Topic Questions: 1.2 The mean and variance of the binomial and Poisson distributions. — WST02 The Binomial and Poisson distributions
56 WST02 The Binomial and Poisson distributions topic questions are tagged to this syllabus point across 29 papers (2015–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved.
Core finding
This The Binomial and Poisson distributions syllabus point appears in 29 WST02 papers across 2015–2026, contributing 56 topic questions and 170 marks. The most recent appearance is WST02/02 January 2026. That equals 18.1% of the 309 topic questions and 21.4% of the 794 marks tagged to The Binomial and Poisson distributions. Only parts tagged to this subtopic are counted, so a four-part question can contribute one item and one part's marks. The table lists every matching question, its tagged parts and marks, with a link back to the paper page. Sessions are newest first, so the statement can be traced back through the full paper history.
Topic questions by session
Newest sessions first. Parts and marks count only the parts tagged to this subtopic; “x of y parts” shows how much of the question is tagged elsewhere. Select the paper cell to open the matching question on the paper page, or use Go to Practice Hub to answer that exact question in the Interactive Practice Hub.
| Paper | Question | Type | Parts | Marks | Difficulty | Practice |
|---|---|---|---|---|---|---|
| WST02/02January 2026 · Edexcel IAL | Q2 Binomial and Poisson Distribution Calculations - Edexcel IAL S2 2026 Jan Q2 |
FRQ | 1 of 4 parts ((c)) | 3 of 10 on the paper |
Medium | Go to Practice Hub |
| WST02/02January 2026 · Edexcel IAL | Q7 Poisson Process and Sightings - Edexcel IAL S2 2026 Jan Q7 |
FRQ | 1 of 5 parts ((d)) | 2 of 12 on the paper |
Medium | Go to Practice Hub |
| WST02/01October 2025 · Edexcel IAL | Q2 Poisson Distribution and Hypothesis Testing - Edexcel IAL Statistics S2 October 2025 Q2 |
FRQ | 1 of 4 parts ((a)) | 3 of 12 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2025 · Edexcel IAL | Q2 Poisson Distribution and Hypothesis Testing - Edexcel IAL S2 Summer 2025 Q2 |
FRQ | 1 of 6 parts ((a)) | 1 of 10 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2025 · Edexcel IAL | Q3 Binomial and Poisson Approximations - Edexcel IAL S2 Summer 2025 Q3 |
FRQ | 2 of 4 parts ((a), (b)) | 6 of 10 on the paper |
Medium | Go to Practice Hub |
| WST02/01January 2025 · Edexcel IAL | Q6 Normal Approximation to Binomial - Edexcel IAL S2 Jan 2025 Q6 |
FRQ | 2 of 3 parts ((a), (c)) | 3 of 8 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2024 · Edexcel IAL | Q1 Poisson Distribution and Approximation - Edexcel IAL S2 October 2024 Q1 |
FRQ | 1 of 3 parts ((b)) | 2 of 8 on the paper |
Medium | Go to Practice Hub |
| WST02/01October 2024 · Edexcel IAL | Q2 Binomial Distribution and Marks Expectation - Edexcel IAL S2 October 2024 Q2 |
FRQ | 1 of 5 parts ((b)(ii)) | 3 of 12 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2024 · Edexcel IAL | Q1 Poisson Distribution Calculations and Hypothesis Testing - Edexcel IAL S2 June 2024 Q1 |
FRQ | 1 of 5 parts ((b)) | 4 of 13 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2024 · Edexcel IAL | Q1 Poisson Distribution Analysis - Edexcel IAL S2 Jan 2024 Q1 |
FRQ | 2 of 6 parts ((a), (b)) | 4 of 16 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2023 · Edexcel IAL | Q1 Binomial Distribution and Calculations - Edexcel IAL S2 October 2023 Q1 |
FRQ | 1 of 4 parts ((b)(i)) | 2 of 10 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2023 · Edexcel IAL | Q7 Normal Approximation to Binomial Distribution - Edexcel IAL S2 October 2023 Q7 |
FRQ | 1 of 2 parts ((b)) | 3 of 10 on the paper |
Hard | Go to Practice Hub |
| WST02/01January 2023 · Edexcel IAL | Q5 Poisson and Normal Approximation - Edexcel IAL S2 Jan 2023 Q5 |
FRQ | 1 of 3 parts ((c)) | 8 of 14 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2022 · Edexcel IAL | Q1 Poisson and Binomial Distributions - Edexcel IAL S2 October 2022 Q1 |
FRQ | 2 of 4 parts ((b), (c)) | 8 of 11 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2022 · Edexcel IAL | Q1 Binomial and Poisson Distributions - Edexcel IAL S2 2022 Jun Q1 |
FRQ | 1 of 4 parts ((a)) | 1 of 10 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2022 · Edexcel IAL | Q5 Poisson and Binomial Distributions - Edexcel IAL S2 2022 Jun Q5 |
FRQ | 2 of 3 parts ((a)(i), (b)) | 8 of 10 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2022 · Edexcel IAL | Q7 Sampling Distributions - Edexcel IAL S2 2022 Jun Q7 |
FRQ | 2 of 4 parts ((a)(i), (a)(ii)) | 5 of 12 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2022 · Edexcel IAL | Q1 Poisson Distribution Calculations - Edexcel IAL S2 Jan 2022 Q1 |
FRQ | 1 of 3 parts ((b)) | 4 of 11 on the paper |
Medium | Go to Practice Hub |
| WST02/01June 2021 · Edexcel IAL | Q2 Poisson Distribution and Hypothesis Testing - Edexcel IAL S2 2021 Jun Q2 |
FRQ | 3 of 5 parts ((b), (d), (e)) | 11 of 15 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2021 · Edexcel IAL | Q6 Normal Approximation to Binomial - Edexcel IAL S2 2021 Jun Q6 |
FRQ | 1 of 2 parts ((i)) | 7 of 10 on the paper |
Hard | Go to Practice Hub |
| WST02/01January 2021 · Edexcel IAL | Q3 Poisson Distribution and Normal Approximation - Edexcel IAL Statistics S2 Jan 2021 Q3 |
FRQ | 1 of 5 parts ((a)) | 2 of 17 on the paper |
Medium | Go to Practice Hub |
| WST02/01October 2020 · Edexcel IAL | Q3 Binomial and Normal Approximation - Edexcel IAL S2 June 2020 Q3 |
FRQ | 1 of 4 parts ((b)) | 7 of 15 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2020 · Edexcel IAL | Q4 Poisson Distribution and Hypothesis Testing - Edexcel IAL S2 June 2020 Q4 |
FRQ | 1 of 6 parts ((d)) | 3 of 16 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2020 · Edexcel IAL | Q1 Poisson Distribution and Approximations - Edexcel IAL S2 January 2020 Q1 |
FRQ | 1 of 5 parts ((b)) | 3 of 14 on the paper |
Medium | Go to Practice Hub |
| WST02/01January 2020 · Edexcel IAL | Q2 Binomial Distribution and Hypothesis Testing - Edexcel IAL S2 January 2020 Q2 |
FRQ | 1 of 4 parts ((c)) | 5 of 15 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2019 · Edexcel IAL | Q1 Binomial Distribution and Conditional Probability - Edexcel IAL S2 October 2019 Q1 |
FRQ | 1 of 3 parts ((b)) | 4 of 9 on the paper |
Medium | Go to Practice Hub |
| WST02/01June 2019 · Edexcel IAL | Q1 Poisson Distribution Assumptions and Calculations - Edexcel IAL S2 2019 Jun Q1 |
FRQ | 1 of 6 parts ((a)) | 1 of 15 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2019 · Edexcel IAL | Q6 Binomial Distribution and Hypothesis Testing - Edexcel IAL S2 2019 Jun Q6 |
FRQ | 1 of 6 parts ((b)) | 1 of 11 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2019 · Edexcel IAL | Q1 Binomial Distribution and Expected Earnings - Edexcel IAL S2 2019 Jan Q1 |
FRQ | 1 of 4 parts ((c)) | 3 of 7 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2019 · Edexcel IAL | Q4 Hypothesis Testing - Edexcel IAL S2 2019 Jan Q4 |
FRQ | 1 of 2 parts ((b)) | 4 of 9 on the paper |
Medium | Go to Practice Hub |
| WST02/01October 2018 · Edexcel IAL | Q7 Poisson Distribution - Edexcel IAL S2 Oct 2018 Q7 |
FRQ | 1 of 5 parts ((d)) | 2 of 12 on the paper |
Medium | Go to Practice Hub |
| WST02/01June 2018 · Edexcel IAL | Q1 Binomial Distribution - Edexcel IAL June 2018 S2 Q1 |
FRQ | 1 of 4 parts ((b)) | 2 of 9 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2018 · Edexcel IAL | Q2 Hypothesis Testing and Expectation - Edexcel IAL June 2018 S2 Q2 |
FRQ | 1 of 3 parts ((c)) | 3 of 12 on the paper |
Medium | Go to Practice Hub |
| WST02/01January 2018 · Edexcel IAL | Q4 Binomial Parameters & Hypothesis Testing - Jan 2018 Q4 |
FRQ | 2 of 3 parts ((a), (b)) | 7 of 11 on the paper |
Medium | Go to Practice Hub |
| WST02/01October 2017 · Edexcel IAL | Q3 Poisson Distribution and Hypothesis Testing - Edexcel IAL S2 October 2017 Q3 |
FRQ | 1 of 4 parts ((b)) | 2 of 14 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2017 · Edexcel IAL | Q2 Binomial Distribution and Normal Approximation - Edexcel IAL S2 June 2017 Q2 |
FRQ | 1 of 5 parts ((d)) | 5 of 12 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2017 · Edexcel IAL | Q4 Poisson Approximation and Binomial Hypothesis Testing - Edexcel IAL S2 June 2017 Q4 |
FRQ | 2 of 5 parts ((a)(i), (a)(ii)) | 3 of 13 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2017 · Edexcel IAL | Q1 Discrete and Continuous Distributions - Edexcel IAL S2 Jan 2017 Q1 |
FRQ | 1 of 3 parts ((c)) | 4 of 7 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2016 · Edexcel IAL | Q3 Binomial Distribution and Linear Transformations - Edexcel IAL S2 October 2016 Q3 |
FRQ | 1 of 4 parts ((d)) | 3 of 10 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2016 · Edexcel IAL | Q1 Poisson Distribution Calculations - Edexcel S2 2016 Jun Q1 |
FRQ | 1 of 4 parts ((c)) | 3 of 11 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2016 · Edexcel IAL | Q2 Binomial and Poisson Parameters - Edexcel S2 2016 Jun Q2 |
FRQ | 1 of 4 parts ((c)) | 3 of 10 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2016 · Edexcel IAL | Q7 Binomial and Poisson Hypothesis Test - Edexcel S2 2016 Jun Q7 |
FRQ | 2 of 5 parts ((a)(i), (a)(ii)) | 4 of 15 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2016 · Edexcel IAL | Q5 Poisson Distribution and Hypothesis Testing - Edexcel IAL S2 Jan 2016 Q5 |
FRQ | 1 of 5 parts ((b)) | 2 of 10 on the paper |
Medium | Go to Practice Hub |
| WST02/01January 2015 · Edexcel IAL | Q1 Poisson distribution and rates - Edexcel IAL Statistics S2 Jan 2015 Q1 |
FRQ | 1 of 4 parts ((a)) | 3 of 16 on the paper |
Medium | Go to Practice Hub |
| WST02/01January 2015 · Edexcel IAL | Q6 Binomial distribution and hypothesis tests - Edexcel IAL Statistics S2 Jan 2015 Q6 |
FRQ | 1 of 4 parts ((b)) | 3 of 13 on the paper |
Easy | Go to Practice Hub |
Related topic questions in The Binomial and Poisson distributions
Topic question rules and edge cases
- How many topic questions cover this syllabus point?
- 45 question stems cover this subtopic across 29 papers, but only 56 tagged parts and 170 marks belong to it. Other parts of the same questions are assessed under different statements and are excluded from this page.
- Which papers include this subtopic?
- The table lists every matching session from 2015–2026. Each row links to the question anchor on the paper page, where the full paper context and practice entry point are available.
- Why can one question appear under several subtopics?
- The parts of one question can assess different syllabus statements. Each part is counted under its own subtopics, so the same question stem can appear on several subtopic pages while each page lists only the parts and marks tagged to that statement.
- Can I practise these questions with AI marking?
- Yes. Open a paper from the table and use the Interactive Practice Hub entry point. The page itself is static HTML so search engines and retrieval agents can read the full question list without executing JavaScript.