Bivariate data and bias

Identify bivariate numerical data, plan an investigation into two related variables and recognise sources of bias that could distort the results.

⏱ 18 min❓ 10 questions

What you'll be able to do

✔I can identify bivariate numerical data and name the explanatory and response variables
✔I can plan how to collect bivariate data for an investigation
✔I can recognise sources of bias, including sampling, measurement, non-response and confounding

How this works

1Read the short explanations first — they teach you what you need before each question.
2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.

What's inside

10 questions and 1 quick teaching card, including:

✅Select all that apply — More than one can be right — pick every option that fits.
🔘Multiple choice — Tap the answer you think is best, then check it.

👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.

Curriculum: AC9M9ST04