Statistical Thinking skill check
Populations and samples, variables and scales, study design, bias, confounding, uncertainty and critiquing claims — mostly scenario judgements plus a few quick calculations. 12 questions, 30 minutes, 70% to pass.
- Questions
- 12
- Time
- 30 min
- Pass mark
- 70%
- Retake after
- 6 h
Skills covered
Tell descriptive from inferential claims · Explain what statistics is for · Reason about variability · Identify population, frame and sample · Distinguish parameters from statistics · Compute a sample proportion · Identify the unit of observation · Classify variable types · Classify measurement scales · Summarise Likert (ordinal) data · Tell observational studies from experiments · Explain random assignment and control groups · Evaluate data sources and provenance · Distinguish random and systematic measurement error · Identify sources of bias · Detect and correct nonresponse bias · Identify confounding variables · Judge causal claims · Reason about sampling variability · Compute and interpret a margin of error · Separate statistical from practical significance · Critique a statistical claim · Compare relative and absolute changes and rates
Covers Track 1: Statistical Thinking. Passing it, together with completing every lesson, earns the track certificate.
How it works
- Questions are drawn from this assessment's own bank, with numbers generated for your attempt.
- Your answers save automatically. Nothing is graded until you submit or the time runs out (the server keeps the time).
- No hints or feedback during the attempt; full worked solutions afterwards.
- You may use a calculator, the lab and your notes. The assessment is not proctored.