Two-way frequency tables, percentaged tables, divided bar graphs and describing association

What this note covers

1. Organise paired categorical data
2. Choose the correct percentage denominator
3. Identify association through conditional patterns
4. Construct and read a divided bar graph
5. Handle broader tables and sparse categories
6. Interpret cautiously and communicate concisely

6 sections · 10 key terms & formulas · 6 common mistakes