# WST01 Mathematical models in probability and statistics Topic Questions > Edexcel IAL WST01: every Mathematical models in probability… topic question from 9 papers (2014–2025), grouped by syllabus point. 11 questions, 29 marks,… - Canonical HTML: https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/mathematical-models-in-probability-and-statistics/ - Markdown mirror: https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/mathematical-models-in-probability-and-statistics/index.md --- Edexcel IAL · Mathematics · WST01 · A Level Every WST01 Mathematical models in probability and statistics topic question from the 2014–current syllabus, drawn from 9 papers (2014–2025) and grouped by syllabus point. Each row opens a page listing the exact question numbers, marks and a direct link into the paper. These are questions by topic, not full papers, so you can revise one topic at a time. - WST01 - 1 subtopics - 11 topic questions - 9 papers - 29 tagged marks - [Back to Mathematical models in probability and statistics](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 **1.1 The basic ideas of mathematical modelling as applied in… is the most frequently assessed subtopic in Mathematical models in probability and statistics, with 11 topic questions and 29 marks across 9 papers.** The topic contains 1 subtopics, 11 topic questions and 29 marks in total. Rows count only the parts tagged to that subtopic, keep the same colour in both charts and repeat paper count, tagged marks and year range in the native table. Every row opens the matching past-paper question list, which links on to the exact paper and the practice entry point. ## Topic question count and mark distribution Subtopics are on the vertical axis and sorted from highest to lowest. Only the parts whose knowledge graph matches a subtopic are counted for it, and percentages are each row's share of the tagged total in that chart. A part tagged to several subtopics is counted in each bar, so the bars are not a partition of the topic total. ### Questions by subtopic question items - [1.1 The basic ideas of mathematical modelling as applied in probability and statistics.](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/) (9 papers) — 11 · 100.0% ### Marks by subtopic marks - [1.1 The basic ideas of mathematical modelling as applied in probability and statistics.](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/) (9 papers) — 29 · 100.0% ## Subtopic comparison matrix Curriculum order is by syllabus number, then alphabetically. Every row links to the matching past-paper question list. | Subtopic | Topic questions | Papers | Marks | Years | | | --- | --- | --- | --- | --- | --- | | **[1.1 The basic ideas of mathematical modelling as applied in probability and statistics.](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/)** | 11 | 9 | 29 | 2014–2025 | [Open topic questions](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/) | ## Browse every topic question - [1.1 The basic ideas of mathematical modelling as applied in probability and statistics.](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/) — 11 question items · 9 papers — 29 marks · 2014–2025 ## Other topics in WST01 - [Correlation and regression 239 question items](https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/correlation-and-regression/) - [Discrete random variables 227 question items](https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/discrete-random-variables/) - [Probability 291 question items](https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/probability/) - [Representation and summary of data 270 question items](https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/representation-and-summary-of-data/) - [The Normal distribution 139 question items](https://www.examsci.com/topics/edexcel-ial/mathematics/statistics-1-wst01/the-normal-distribution/) ## Topic question rules and edge cases **How many subtopics does Mathematical models in probability and statistics contain?** This page lists 1 subtopics tagged to the current syllabus. They are ordered by syllabus number, then alphabetically, and each row opens a page of matching past-paper questions. **How are the subtopic question and mark totals calculated?** A multiple-choice question contributes one item and its marks to every subtopic it is tagged with. A structured question contributes one item per tagged part, and that part’s marks; untagged parts of the same question are not counted here. A part tagged to several subtopics therefore appears under each of them. **Why do some subtopics have no numbered prefix?** Practical-skills statements and some syllabus bullets are unnumbered. Numbered statements come first; unnumbered statements and ties are sorted alphabetically. **Is the LaTeX rendered without JavaScript?** Yes. Subtopics that contain formulas are converted to static KaTeX HTML during the build, and the KaTeX stylesheet is served from the same site. --- 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/