Stage 8 - Q1 - 2 marks
A class reports favourite fruit: apple 8, banana 6, orange 5, grape 3. Choose a display to compare the counts.
Hint
The main aim is comparison of category counts.
Stage 8 - Q2 - 2 marks
A plant is measured each morning for ten days. Choose a display to show change over time.
Hint
Preserve the order of the observations in time.
Stage 8 - Q3 - 2 marks
For each pupil, height and arm span are recorded. Choose a display to examine whether the two measurements are related.
Hint
The data are paired numerical measurements.
Stage 8 - Q4 - 2 marks
A budget is split among rent, food, travel and other costs. Choose a display for the proportion spent on each category.
Hint
The aim is part-to-whole comparison.
Stage 8 - Q5 - 3 marks
Ten test scores are 12, 14, 18, 21, 21, 25, 27, 31, 34, 38. Choose a display that keeps exact values visible while grouping them in order.
Hint
A grouped bar chart would hide the exact individual scores.
Stage 8 - Q6 - 4 marks
Two libraries have fiction, science and history counts A=(80, 40, 30) and B=(60, 50, 45). Choose a display to compare each genre across libraries and justify it.
Hint
The same categories occur in two groups.
Stage 8 - Q7 - 4 marks
Food box A contains 2 kg fruit and 3 kg vegetables. Box B contains 4 kg fruit and 2 kg vegetables. Choose a display that shows components and total masses together.
Hint
The viewer needs both part amounts and total amounts.
Stage 8 - Q8 - 4 marks
Choose a display for each task: show pupils in football, music, both or neither; sort numbers by even/not even and multiple of 3/not multiple of 3. Explain your choices.
Hint
Decide whether overlap or cross-classification is the clearer structure.
Stage 8 - Q9 - 5 marks
Twenty waits fall in equal ten-minute classes with frequencies 3, 7, 6, 4. A notice says “50% waited at least 20 minutes”. Is that headline correct? Which display would show the full distribution and why is the headline alone insufficient?
Hint
An infographic can convey a headline without replacing the detailed distribution.
Stage 8 - Q10 - 6 marks
For six pupils the modes are walk, walk, bus, bus, cycle, cycle; distances are 1, 2, 5, 7, 3, 4 km; times are 12, 24, 15, 21, 12, 16 min respectively. Choose three displays to answer: mode counts, distance–time relationship, and exact time values. Explain why one pie chart cannot answer all three.
Hint
Match each question to the information that its display must retain.