# Topic Questions: 1.1 The basic ideas of mathematical modelling as applied in probability and statistics. — WST01 Mathematical models in probability and statistics > 11 WST01 Mathematical models in probability and statistics topic questions (29 marks) on 1.1 The basic ideas of mathematical modelling as… — 9 papers,… - Canonical HTML: https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/mathematical-models-in-probability-and-statistics/1-1-the-basic-ideas-of-mathematical-modelling-as-applied-in-probability-and-statistics/ - Markdown mirror: https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/mathematical-models-in-probability-and-statistics/1-1-the-basic-ideas-of-mathematical-modelling-as-applied-in-probability-and-statistics/index.md --- Edexcel IAL · Mathematics · WST01 · Mathematical models in probability and statistics 11 WST01 Mathematical models in probability and statistics topic questions are tagged to this syllabus point across 9 papers (2014–2025). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved. - 11 topic questions - 9 papers - 29 tagged marks - 100.0% of topic questions - 100.0% of topic marks - 2014–2025 - Syllabus 2014–current - [All WST01 Mathematical models in probability and statistics topic questions](https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/mathematical-models-in-probability-and-statistics/) - [All paper codes](https://www.examsci.com/topics/) Core finding **This Mathematical models in probability and statistics syllabus point appears in 9 WST01 papers across 2014–2025, contributing 11 topic questions and 29 marks.** The most recent appearance is WST01/01 June 2025. That equals 100.0% of the 11 topic questions and 100.0% of the 29 marks tagged to Mathematical models in probability and statistics. 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 | | --- | --- | --- | --- | --- | --- | --- | | [**WST01/01** June 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/statistics-1-wst01/2025-june-wst01-01/#q-3) | **Q3** Correlation and Linear Regression - Edexcel IAL June 2025 S1 Q3 | FRQ | 1 of 8 parts ((a)) | 1 of 14 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=eaaae1ba-24f5-41af-a961-a10e48255aea&question_id=cc0ce4c4-ed7c-448c-a215-00f1f9103e44&source_detail=WST01%2F01+June+2025) | | [**WST01/01** October 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/statistics-1-wst01/2024-october-wst01-01/#q-5) | **Q5** Histograms and Median Estimation - Edexcel IAL S1 Oct 2024 Q5 | FRQ | 1 of 4 parts ((d)) | 2 of 8 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=05dfad24-ee91-470d-bedb-93d7a93723b5&question_id=1d4190dd-478e-4d88-bb4b-874d3969c046&source_detail=WST01%2F01+October+2024) | | [**WST01/01** October 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/statistics-1-wst01/2021-october-wst01-01/#q-6) | **Q6** Normal Distribution and Shelf Optimization - Edexcel IAL S1 Oct 2021 Q6 | FRQ | 1 of 4 parts ((d)) | 2 of 15 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=8afe31c0-83e4-44f0-a07a-cdf6bd2d8b59&question_id=ae9e3c9f-b0bb-49d4-a0df-c504f46c034f&source_detail=WST01%2F01+October+2021) | | [**WST01/01** January 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/statistics-1-wst01/2021-january-wst01-01/#q-6) | **Q6** Geometric Probability & Sampling Distributions - Edexcel IAL S1 Jan 2021 Q6 | FRQ | 2 of 4 parts ((a), (d)) | 6 of 15 on the paper | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=47377eb9-33d0-48b6-bf89-6bfd7f53bfef&question_id=803351ea-4d59-465e-80bf-96926e24ca92&source_detail=WST01%2F01+January+2021) | | [**WST01/01** June 2019 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/statistics-1-wst01/2019-june-wst01-01/#q-5) | **Q5** Biased Spinner Discrete Random Variable - Edexcel IAL S1 Jun 2019 Q5 | FRQ | 1 of 5 parts ((e)) | 2 of 14 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=63157e68-d0d9-4b7d-a8fe-e9f4fd1f89fa&question_id=f106fd07-f5eb-473e-81d3-53558b522954&source_detail=WST01%2F01+June+2019) | | [**WST01/01** January 2019 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/statistics-1-wst01/2019-january-wst01-01/#q-5) | **Q5** Probability Modelling and Evaluation - Edexcel IAL S1 Jan 2019 Q5 | FRQ | 2 of 6 parts ((d), (f)) | 8 of 15 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9835256d-c8ce-4694-88d4-4966e00f9af1&question_id=8aa160eb-b1f6-49d9-92f0-0be34f6ce7bd&source_detail=WST01%2F01+January+2019) | | [**WST01/01** October 2018 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/statistics-1-wst01/2018-october-wst01-01/#q-6) | **Q6** Normal Distribution and Financial Optimization - Edexcel IAL S1 Oct 2018 Q6 | FRQ | 1 of 5 parts ((c)) | 4 of 16 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=bccf8334-d3a5-4f52-a293-2b8bddeed272&question_id=2e4ddd4b-6355-42b9-a506-e0999a81b58c&source_detail=WST01%2F01+October+2018) | | [**WST01/01** October 2017 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/statistics-1-wst01/2017-october-wst01-01/#q-3) | **Q3** Normal distribution and conditional probability - Edexcel IAL S1 Oct 2017 Q3 | FRQ | 1 of 5 parts ((e)) | 2 of 12 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=46dbee62-0633-41cd-9df6-71e49b160803&question_id=55b98c37-89be-4dab-918e-51cd50b60cc7&source_detail=WST01%2F01+October+2017) | | [**WST01/01** June 2014 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/statistics-1-wst01/2014-june-wst01-01/#q-6) | **Q6** Venn Diagram and Restaurant Bookings - Edexcel IAL Statistics S1 June 2014 Q6 | FRQ | 1 of 4 parts ((d)) | 2 of 12 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=a4ec1570-2bfb-41e3-ba03-db14c1447091&question_id=83c0396c-5b83-4cb9-94fc-42a9b5682615&source_detail=WST01%2F01+June+2014) | ## Related topic questions in Mathematical models in probability and statistics ## Topic question rules and edge cases **How many topic questions cover this syllabus point?** 9 question stems cover this subtopic across 9 papers, but only 11 tagged parts and 29 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 2014–2025. 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. --- Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/mathematical-models-in-probability-and-statistics/1-1-the-basic-ideas-of-mathematical-modelling-as-applied-in-probability-and-statistics/