AQA GCSE Statistics Section B Data Collection & Sampling Revision Workbook | Foundation & Higher

A comprehensive revision workbook covering Section B of the AQA GCSE Statistics specification (8382) — the largest section of the course, with 17 specification points across five sub-topics. Suitable for Foundation and Higher tier, with Higher-only content clearly signposted.

Topics covered:
Types of data: raw, categorical, ordinal, discrete, continuous, quantitative, qualitative, bivariate and multivariate
Explanatory and response variables
Primary and secondary data, with advantages and limitations of each
Data collection methods: experiments, questionnaires, observation, census, sampling and more
Reliability and validity — definitions, worked example and applied questions
Bias — sources, examples and strategies to minimise distortion
Sampling methods: random, systematic, convenience and quota — advantages and risks
Stratification — when to use it, formula, two fully worked examples including the 2024 AQA exam parkrun question
Questionnaire design: leading questions, open and closed questions, response sections, interview types
Data problems and cleaning: missing data, incorrect formats, non-responses, spreadsheet errors
Extraneous variables and control groups (Higher)

Workbook features:
Full AQA spec coverage for Section B
Worked examples using authentic 2024 AQA exam contexts (Yamil’s zoo, Franco’s parkrun, Ragnar’s apps)
Common mistake boxes with examiner-report insight
Exam-style practice questions at Foundation and Higher level
Full mark scheme with context-specific guidance

Suitable for classroom use, independent revision, and tutoring. Compatible with the 2019–onwards specification.