CIE IAL · Mathematics · 9709 P6 · Sampling and estimation
Topic Questions: • calculate unbiased estimates of the population mean and variance from a sample, using either raw or summarised data — 9709 P6 Sampling and estimation
38 9709 P6 Sampling and estimation topic questions are tagged to this syllabus point across 35 papers (2020–2026). 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 Sampling and estimation syllabus point appears in 35 9709 P6 papers across 2020–2026, contributing 38 topic questions and 141 marks. The most recent appearance is 9709/62 May/June 2026. That equals 20.3% of the 187 topic questions and 27.3% of the 517 marks tagged to Sampling and estimation. 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 |
|---|---|---|---|---|---|---|
| 9709/62May/June 2026 · CIE IAL | Q1 Unbiased Estimates of Mean and Variance - CIE A Level Mathematics |
FRQ | 1 part | 3 | Easy | Go to Practice Hub |
| 9709/63May/June 2026 · CIE IAL | Q5 Hypothesis Test and Type II Error for Wamba Snake Lengths - CIE 9709 Jun 2026 Paper 63 Q5 |
FRQ | 1 of 4 parts ((a)) | 3 of 14 on the paper |
Medium | Go to Practice Hub |
| 9709/65May/June 2026 · CIE IAL | Q3 Dog Ownership Confidence Intervals - CIE A-Level Mathematics 2026 Q3 |
FRQ | 1 of 3 parts ((c)) | 3 of 11 on the paper |
Hard | Go to Practice Hub |
| 9709/62March 2026 · CIE IAL | Q1 Plant Heights Unbiased Estimates - CIE A Level Maths |
FRQ | 1 of 2 parts ((a)) | 3 of 7 on the paper |
Easy | Go to Practice Hub |
| 9709/61October/November 2025 · CIE IAL | Q2 Hypothesis Testing for Population Mean - CIE Paper 6 |
FRQ | 1 part | 8 | Medium | Go to Practice Hub |
| 9709/63October/November 2025 · CIE IAL | Q2 Hypothesis Testing for Population Mean - CIE A-Level Mathematics |
FRQ | 1 part | 8 | Medium | Go to Practice Hub |
| 9709/61May/June 2025 · CIE IAL | Q3 Bus Journey Time Hypothesis Test - CIE A-Level Mathematics |
FRQ | 1 of 2 parts ((a)) | 3 of 8 on the paper |
Easy | Go to Practice Hub |
| 9709/62May/June 2025 · CIE IAL | Q2 Unbiased Variance Estimate and Sum of Squares - CIE A-Level Statistics Q2 |
FRQ | 1 part | 3 | Medium | Go to Practice Hub |
| 9709/63May/June 2025 · CIE IAL | Q3 Coffee Volume Sample Estimates - CIE A-Level Mathematics Q3 |
FRQ | 1 of 3 parts ((a)(i)) | 3 of 8 on the paper |
Easy | Go to Practice Hub |
| 9709/65May/June 2025 · CIE IAL | Q2 Confidence Interval for Population Mean from Coded Data - CIE 9709 June 2025 Paper 65 Q2 |
FRQ | 1 of 2 parts ((a)) | 6 of 7 on the paper |
Medium | Go to Practice Hub |
| 9709/62March 2025 · CIE IAL | Q2 Questionnaire Completion Times Hypothesis Test - CIE A Level Mathematics 2025 Mar Paper 62 Q2 |
FRQ | 1 of 3 parts ((a)) | 3 of 9 on the paper |
Easy | Go to Practice Hub |
| 9709/62October/November 2024 · CIE IAL | Q7 Tree Heights Mean Hypothesis Test - CIE Probability & Statistics 2024 Nov Paper 62 Q7 |
FRQ | 1 of 3 parts ((b)) | 7 of 9 on the paper |
Easy | Go to Practice Hub |
| 9709/63October/November 2024 · CIE IAL | Q3 Unbiased Estimates and Sample Mean Distribution - CIE A-Level Maths Q3 |
FRQ | 1 of 2 parts ((a)) | 3 of 6 on the paper |
Easy | Go to Practice Hub |
| 9709/62May/June 2024 · CIE IAL | Q2 Random Digits Sampling - CIE P6 Q2 |
FRQ | 2 of 3 parts ((b), (c)) | 4 of 6 on the paper |
Easy | Go to Practice Hub |
| 9709/63May/June 2024 · CIE IAL | Q6 Hypothesis Testing for Mean Green Sweets - CIE A Level Mathematics Q6 |
FRQ | 1 of 4 parts ((a)) | 3 of 9 on the paper |
Easy | Go to Practice Hub |
| 9709/62March 2024 · CIE IAL | Q1 Unbiased Estimates of Insect Lengths - CIE Mathematics Q1 |
FRQ | 1 of 2 parts ((a)) | 3 of 4 on the paper |
Easy | Go to Practice Hub |
| 9709/61October/November 2023 · CIE IAL | Q7 Pollutant Hypothesis Test and Type II Error - CIE A-Level Maths 2023 |
FRQ | 1 of 2 parts ((a)) | 7 of 12 on the paper |
Medium | Go to Practice Hub |
| 9709/63October/November 2023 · CIE IAL | Q7 Large Sample Hypothesis Test and Type II Error - CIE A-Level Maths |
FRQ | 1 of 2 parts ((a)) | 7 of 12 on the paper |
Medium | Go to Practice Hub |
| 9709/61May/June 2023 · CIE IAL | Q6 Unbiased Estimate of Variance - CIE Mathematics 2023 Jun Paper 61 Q6 |
FRQ | 1 part | 3 | Medium | Go to Practice Hub |
| 9709/62May/June 2023 · CIE IAL | Q3 Unbiased Estimates and Hypothesis Test for Mean - CIE 9709 Jun 2023 Paper 62 Q3 |
FRQ | 1 of 2 parts ((a)) | 3 of 8 on the paper |
Easy | Go to Practice Hub |
| 9709/63May/June 2023 · CIE IAL | Q5 Hypothesis Testing for Population Mean - CIE 9709 S23 Paper 63 Q5 |
FRQ | 1 of 3 parts ((a)) | 3 of 9 on the paper |
Easy | Go to Practice Hub |
| 9709/61October/November 2022 · CIE IAL | Q1 Unbiased Estimates of Mean and Variance - CIE A-Level Maths 2022 Nov Paper 61 Q1 |
FRQ | 1 part | 3 | Easy | Go to Practice Hub |
| 9709/62October/November 2022 · CIE IAL | Q1 Estimates of Height of Building - CIE 9709 Nov 2022 Paper 62 Q1 |
FRQ | 1 of 2 parts ((a)) | 3 of 7 on the paper |
Easy | Go to Practice Hub |
| 9709/63October/November 2022 · CIE IAL | Q1 Unbiased Estimates of Tree Heights - CIE A-Level Mathematics Q1 |
FRQ | 1 part | 3 | Easy | Go to Practice Hub |
| 9709/61May/June 2022 · CIE IAL | Q1 Disc Diameters Confidence Interval - CIE Statistics Q1 |
FRQ | 1 of 2 parts ((a)) | 6 of 7 on the paper |
Medium | Go to Practice Hub |
| 9709/63May/June 2022 · CIE IAL | Q6 Unbiased Estimate of Variance from Sample - CIE A-Level Mathematics Q6 |
FRQ | 2 parts ((a), (b)) | 4 | Easy | Go to Practice Hub |
| 9709/61October/November 2021 · CIE IAL | Q6 Unbiased Estimates and Race Time Differences - CIE A Level Probability & Statistics Q6 |
FRQ | 1 of 2 parts ((a)) | 3 of 8 on the paper |
Easy | Go to Practice Hub |
| 9709/62October/November 2021 · CIE IAL | Q1 Mass of Cheese Blocks - CIE A Level Mathematics 2021 Nov Paper 62 Q1 |
FRQ | 2 parts ((a), (b)) | 6 | Easy | Go to Practice Hub |
| 9709/63October/November 2021 · CIE IAL | Q6 Unbiased Estimation and Linear Combination of Running Times - CIE A-Level Probability & Statistics 2 Q6 |
FRQ | 1 of 2 parts ((a)) | 3 of 8 on the paper |
Easy | Go to Practice Hub |
| 9709/61May/June 2021 · CIE IAL | Q4 Confidence Interval for Ball Throwing - CIE A-Level Mathematics |
FRQ | 1 part | 6 | Medium | Go to Practice Hub |
| 9709/62May/June 2021 · CIE IAL | Q6 Animal Heights Confidence Interval - CIE A-Level Maths 2021 Jun Q6 |
FRQ | 1 of 3 parts ((a)) | 3 of 8 on the paper |
Easy | Go to Practice Hub |
| 9709/61October/November 2020 · CIE IAL | Q2 Travel Questionnaire Survey - CIE 9709 Nov 2020 Paper 61 Q2 |
FRQ | 1 of 3 parts ((b)) | 3 of 7 on the paper |
Medium | Go to Practice Hub |
| 9709/61May/June 2020 · CIE IAL | Q1 Leaf Length Sample Analysis - CIE A-Level Mathematics P6 Q1 |
FRQ | 1 of 2 parts ((a)) | 3 of 6 on the paper |
Easy | Go to Practice Hub |
| 9709/63May/June 2020 · CIE IAL | Q1 Unbiased Estimates of Mean and Variance - CIE A-Level Probability & Statistics 2 |
FRQ | 1 part | 3 | Easy | Go to Practice Hub |
| 9709/62March 2020 · CIE IAL | Q3 Freda Journey Time Hypothesis Test - CIE S2 Q3 |
FRQ | 1 of 2 parts ((a)) | 3 of 8 on the paper |
Easy | Go to Practice Hub |
Related topic questions in Sampling and estimation
• determine and interpret a confidence interval for a population mean in cases where the population is normally distributed with known variance or where a large sample is used
93 marks · 2020–2026
• determine, from a large sample, an approximate confidence interval for a population proportion
89 marks · 2020–2026
• explain in simple terms why a given sampling method may be unsatisfactory
11 marks · 2020–2026
• recognise that a sample mean can be regarded as a random variable, and use the facts that and that
73 marks · 2020–2026
• understand the distinction between a sample and a population, and appreciate the necessity for randomness in choosing samples
18 marks · 2020–2025
• use the Central Limit Theorem where appropriate
55 marks · 2020–2026
Topic question rules and edge cases
- How many topic questions cover this syllabus point?
- 35 question stems cover this subtopic across 35 papers, but only 38 tagged parts and 141 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 2020–2026. 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.