GCSE & iGCSE Comparing Data worksheet

Comparing data worksheet for GCSE and iGCSE maths: comparing an average and a spread in context, sampling, bias and estimating for a population.

A complete comparing data worksheet for Pearson Edexcel GCSE (1MA1) and International GCSE (4MA1), written so one resource works for both tiers. Every section is clearly labelled Foundation or Higher, and questions get harder as you go.

What’s covered — Foundation

Comparing two sets of data using an average and a measure of spread, in context
Choosing a fair average when there are outliers
Explaining samples, populations and bias
Using a sample to estimate for a population

What’s covered — Higher (grades 6 to 9)

Comparing using the median and interquartile range
Combining and weighting samples

How it’s structured

A. Worked examples & Your turn — a model solution beside a matching question to try
B. Fluency — core skills
C. Reasoning — explain it
D. Problem solving — unfamiliar, multi-step questions
E. Exam practice — exam-style questions with mark allocations

123 marks across Sections B to E (61 Foundation, 62 Higher), with a progress tracker on the front page so students can record their score per section. Every comparison must be written in context, which is how the mark scheme awards it — a bare statement that one mean is larger earns nothing.

How to use it

Works as a full lesson, homework, a cover lesson or targeted intervention. Because each tier is labelled, you can set the Foundation sections to one group and the Higher sections to another from the same print.

What’s included

13-page worksheet (PDF, printable, with answer spaces)
6-page full worked solutions (PDF) — complete method for every question, not just final answers
Calculator allowed

Specification

Pearson Edexcel GCSE Mathematics (1MA1) and International GCSE Mathematics (4MA1), Statistics. All questions are original.