Edexcel IAL · Mathematics · WST02 · Continuous distributions
Topic Questions: 3.2 Use of the Normal distribution as an approximation to the binomial distribution and the Poisson distribution, with the application of the continuity correction. — WST02 Continuous distributions
58 WST02 Continuous distributions topic questions are tagged to this syllabus point across 36 papers (2014–2026). 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 Continuous distributions syllabus point appears in 36 WST02 papers across 2014–2026, contributing 58 topic questions and 305 marks. The most recent appearance is WST02/01 January 2026. That equals 30.2% of the 192 topic questions and 48.1% of the 634 marks tagged to Continuous 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 |
|---|---|---|---|---|---|---|
| WST02/01January 2026 · Edexcel IAL | Q6 Continuous Random Variables & Normal Approximation - Edexcel IAL Statistics S2 Jan 2026 Q6 |
FRQ | 1 of 6 parts ((f)) | 5 of 19 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2026 · Edexcel IAL | Q7 Normal Approximation to Binomial - Edexcel IAL Statistics S2 Jan 2026 Q7 |
FRQ | 1 of 2 parts ((b)) | 8 of 10 on the paper |
Medium | Go to Practice Hub |
| WST02/02January 2026 · Edexcel IAL | Q1 Continuous and Binomial Distribution - Edexcel IAL S2 2026 Jan Q1 |
FRQ | 1 of 3 parts ((a)) | 3 of 9 on the paper |
Easy | Go to Practice Hub |
| 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 |
| WST02/01October 2025 · Edexcel IAL | Q5 Binomial and Normal Approximation - Edexcel IAL Statistics S2 October 2025 Q5 |
FRQ | 1 of 4 parts ((c)) | 5 of 15 on the paper |
Medium | Go to Practice Hub |
| WST02/02October 2025 · Edexcel IAL | Q3 Approximations of Binomial Distribution - Oct 2025 Q3 |
FRQ | 1 of 5 parts ((c)) | 5 of 11 on the paper |
Easy | Go to Practice Hub |
| WST02/02October 2025 · Edexcel IAL | Q5 Poisson Distribution and Normal Approximation - Oct 2025 Q5 |
FRQ | 1 of 3 parts ((b)) | 9 of 13 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2025 · Edexcel IAL | Q7 Binomial, Normal Approximation and Hypothesis Testing - Edexcel IAL S2 Summer 2025 Q7 |
FRQ | 1 of 5 parts ((d)) | 5 of 14 on the paper |
Easy | 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 ((b), (c)) | 7 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 ((c)) | 4 of 8 on the paper |
Medium | Go to Practice Hub |
| WST02/01June 2024 · Edexcel IAL | Q3 Sampling and Hypothesis Testing - Edexcel IAL S2 June 2024 Q3 |
FRQ | 1 of 6 parts ((f)) | 7 of 15 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2024 · Edexcel IAL | Q1 Poisson Distribution Analysis - Edexcel IAL S2 Jan 2024 Q1 |
FRQ | 1 of 6 parts ((d)) | 5 of 16 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2023 · Edexcel IAL | Q5 Poisson Distribution and Hypothesis Testing - Edexcel IAL S2 October 2023 Q5 |
FRQ | 1 of 5 parts ((d)) | 7 of 16 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 | 2 parts ((a), (b)) | 10 | Hard | Go to Practice Hub |
| WST02/01June 2023 · Edexcel IAL | Q1 Binomial and Poisson Distributions - Edexcel IAL S2 2023 Jun Q1 |
FRQ | 2 of 5 parts ((b)(i), (b)(ii)) | 6 of 11 on the paper |
Easy | 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 | Q4 Binomial and Normal Approximation - Edexcel IAL S2 October 2022 Q4 |
FRQ | 1 of 2 parts ((b)) | 6 of 9 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2022 · Edexcel IAL | Q2 Continuous Random Variables - Edexcel IAL S2 2022 Jun Q2 |
FRQ | 1 of 3 parts ((c)) | 5 of 11 on the paper |
Medium | 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 |
| WST02/01January 2022 · Edexcel IAL | Q5 Binomial to Poisson and Normal Approximations - Edexcel IAL S2 Jan 2022 Q5 |
FRQ | 1 of 5 parts ((e)) | 7 of 14 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2021 · Edexcel IAL | Q1 Binomial and Poisson Distributions - Edexcel IAL S2 October 2021 Q1 |
FRQ | 1 of 4 parts ((d)) | 7 of 14 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 | 2 parts ((i), (ii)) | 10 | Hard | Go to Practice Hub |
| WST02/01January 2021 · Edexcel IAL | Q3 Poisson Distribution and Normal Approximation - Edexcel IAL Statistics S2 Jan 2021 Q3 |
FRQ | 2 of 5 parts ((c)(i), (c)(ii)) | 7 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 ((c)) | 5 of 14 on the paper |
Medium | Go to Practice Hub |
| WST02/01October 2019 · Edexcel IAL | Q3 Poisson Distribution and Hypothesis Testing - Edexcel IAL S2 October 2019 Q3 |
FRQ | 1 of 3 parts ((c)) | 7 of 12 on the paper |
Easy | 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 ((e)) | 5 of 15 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2019 · Edexcel IAL | Q6 Approximations and Sampling - Edexcel IAL S2 2019 Jan Q6 |
FRQ | 2 of 6 parts ((ii)(c), (ii)(d)) | 6 of 12 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2018 · Edexcel IAL | Q2 Binomial Distribution and Normal Approximation - Edexcel IAL S2 Oct 2018 Q2 |
FRQ | 1 of 6 parts ((d)) | 4 of 13 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2018 · Edexcel IAL | Q4 Sampling and Statistics - Edexcel IAL June 2018 S2 Q4 |
FRQ | 1 of 5 parts ((c)) | 1 of 6 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2018 · Edexcel IAL | Q5 Poisson Distribution and Normal Approximation - Edexcel IAL June 2018 S2 Q5 |
FRQ | 1 of 3 parts ((b)) | 9 of 13 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2018 · Edexcel IAL | Q5 Poisson Distribution Calculations & Approximations - Jan 2018 Q5 |
FRQ | 1 of 5 parts ((e)) | 5 of 15 on the paper |
Medium | Go to Practice Hub |
| WST02/01January 2018 · Edexcel IAL | Q6 Normal Approximation & Hypothesis Testing - Jan 2018 Q6 |
FRQ | 1 of 2 parts ((a)) | 6 of 8 on the paper |
Hard | 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 ((d)) | 8 of 14 on the paper |
Easy | Go to Practice Hub |
| WST02/01October 2017 · Edexcel IAL | Q6 Normal Approximation to Binomial - Edexcel IAL S2 October 2017 Q6 |
FRQ | 1 part | 10 | Hard | 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 |
| WST02/01January 2017 · Edexcel IAL | Q3 Poisson Distribution and Approximations - Edexcel IAL S2 Jan 2017 Q3 |
FRQ | 2 of 5 parts ((a), (e)) | 7 of 16 on the paper |
Medium | Go to Practice Hub |
| WST02/01October 2016 · Edexcel IAL | Q6 Poisson and Normal Approximation - Edexcel IAL S2 October 2016 Q6 |
FRQ | 2 of 4 parts ((c)(i), (c)(ii)) | 8 of 12 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 ((d)) | 5 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 |
| WST02/01January 2016 · Edexcel IAL | Q3 Poisson and Normal Approximation to Binomial - Edexcel IAL S2 Jan 2016 Q3 |
FRQ | 1 of 5 parts ((c)) | 5 of 11 on the paper |
Easy | Go to Practice Hub |
| WST02/01June 2015 · Edexcel IAL | Q2 Poisson Distribution and Hypothesis Testing - Edexcel IAL S2 2015 Jun Q2 |
FRQ | 1 of 4 parts ((c)) | 5 of 15 on the paper |
Medium | Go to Practice Hub |
| WST02/01June 2015 · Edexcel IAL | Q6 Binomial Distribution and Approximation - Edexcel IAL S2 2015 Jun Q6 |
FRQ | 1 of 5 parts ((d)) | 6 of 15 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 ((d)) | 5 of 16 on the paper |
Medium | Go to Practice Hub |
| WST02/01January 2015 · Edexcel IAL | Q7 Normal approximation to the binomial - Edexcel IAL Statistics S2 Jan 2015 Q7 |
FRQ | 1 part | 8 | Hard | Go to Practice Hub |
| WST02/01June 2014 · Edexcel IAL | Q4 Normal Distribution and Binomial Approximation - Edexcel IAL S2 June 2014 Q4 |
FRQ | 2 of 3 parts ((a), (c)) | 9 of 12 on the paper |
Medium | Go to Practice Hub |
| WST02/01June 2014 · Edexcel IAL | Q7 Poisson and Binomial Distribution - Edexcel IAL S2 June 2014 Q7 |
FRQ | 1 of 3 parts ((c)) | 8 of 16 on the paper |
Easy | Go to Practice Hub |
| WST02/01January 2014 · Edexcel IAL | Q7 Normal Approximation to Binomial - Edexcel IAL S2 Jan 2014 Q7 |
FRQ | 1 part | 12 | Hard | Go to Practice Hub |
Related topic questions in Continuous distributions
Topic question rules and edge cases
- How many topic questions cover this syllabus point?
- 49 question stems cover this subtopic across 36 papers, but only 58 tagged parts and 305 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 2014–2026. 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.