Year 11 General Mathematics Chapter 2: Investigating and Comparing Data Distributions Student Notes

This resource is designed to support Year 11 General Mathematics students in learning and revising Chapter 2: Investigating and Comparing Data Distributions.

The booklet provides structured student notes, key definitions, worked examples, visual representations, CAS calculator instructions, and practice questions. It is designed to help students build confidence with classifying data, displaying data, describing distributions, calculating measures of centre and spread, identifying outliers, constructing boxplots, and comparing data distributions.

Each section includes clear explanations and guided practice space, making it suitable for whole-class instruction, individual revision, homework, catch-up work, and SAC or exam preparation.

This resource also includes weekly quizzes that can be used for formative assessment, regular revision, homework, or to help absent students catch up on missed learning.

This resource is suitable for:

• Year 11 General Mathematics classes
• Chapter 2: Investigating and Comparing Data Distributions
• Student notes and guided lesson booklets
• Weekly quizzes and formative assessment
• Catch-up work for absent students
• Homework and revision
• SAC and exam preparation
• Supporting students who need structured notes and step-by-step practice

Topics covered include:

• Classifying variables
• Categorical data
• Frequency and percentage frequency tables
• Bar charts
• Modal category
• Writing findings reports
• Numerical data
• Histograms
• Dot plots and stem plots
• Shape of distributions
• Measures of centre: mean, median and mode
• Measures of spread: range, IQR and standard deviation
• Five-figure summary
• The 68–95–99.7 rule
• Boxplots
• Outliers and fences
• Back-to-back stem plots
• Parallel boxplots
• Comparing data distributions
• Using CAS technology for histograms, statistics and boxplots

This ready-to-use student booklet is ideal for teachers who want an organised Chapter 2 resource that combines teaching notes, examples, student practice, technology support and weekly quiz questions in one place.