Visualising and Exploring Data skill check
Choosing charts, reading bar charts, histograms, box plots, densities, scatter plots, time series, ECDFs, Q-Q plots and heatmaps, spotting misleading designs, and making charts accessible and clear — with fresh numbers to read and compute. 12 questions, 30 minutes, 70% to pass.
- Questions
- 12
- Time
- 30 min
- Pass mark
- 70%
- Retake after
- 6 h
Skills covered
Choose a chart for the question and variable types · Build and read bar charts of categories · Read proportions from bar and stacked charts · Build and read histograms · Describe the shape of a distribution · Build and read box plots · Compare groups with charts · Read density curves and violin plots · Read scatter plots · Read line charts of time series · Read ECDF plots · Judge normality from a Q-Q plot · Read correlation matrices and heatmaps · Recognise misleading charts · Make charts accessible · Write chart titles and summaries that state the finding
Covers Track 3: Visualising and Exploring Data. 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.