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studyStatistics & Probability
CoreMaths revision

Data Interpretation

Extract claims from tables and graphs while distinguishing absolute and relative comparisons.

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Focus points
✓Read multi-variable tables.
✓Compare rates rather than raw counts.
✓Evaluate claims made from data.
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The Wise Owl

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target Practice set

Question lineup

Try each question first, reveal a hint when you need one, then check the worked answer. Mark them done as you go — finish the set to claim your chips.

8 revision questions
Question 1FluencyCore
Original practice · Free Online Revision
Skill · rate comparison
A table shows 48 successes from 60 attempts for Team A and 70 from 100 for Team B. Which has the higher success rate?
Question 2FluencyCore
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Skill · change interpretation
A value rises from 120 to 150. Find absolute change and percentage change.
Question 3ReasoningCore
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Skill · data criticism
A graph shows median income but not sample size. What important information is missing before judging reliability?
Question 4FluencyCore
Original practice · Free Online Revision
Skill · spread comparison
Dataset A has mean 50, range 8; Dataset B mean 50, range 30. Which is more spread out by range?
Question 5FluencyCore
Original practice · Free Online Revision
Skill · percentage frequency
A survey reports 60% support from 50 respondents. How many respondents supported the option?
Question 6ReasoningCore
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Skill · data reasoning
A newspaper says sales “doubled” from 2 units to 4 units. Is the statement mathematically true, and what context is missing?
Question 7FluencyCore
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Skill · time-series interpretation
A time-series value changes 80→92→87. Find the percentage change from first to last.
Question 8ChallengeStretch
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Skill · combined data
Two classes have means 72 and 78 with sizes 20 and 30. Find the combined mean.