Mixed and Combined Data Interpretation
Sets that pair two representations — a table with a pie, a bar with a line — about the same scenario, where most questions need a value pulled from each and then combined. Watch for different totals and units between the two.
What you will be able to do
- Recognise when a set's two parts describe the same scenario and must be read together.
- Extract one value from each representation before combining them.
- Check whether the two parts use the same total, unit and time period.
- Plan a two-part question so each figure is computed once.
What is inside this lesson
- 1Two views of one scenario
- 2Extract from each, then combine
- 3Watch the totals and the units
- 4Worked example: branch totals with one branch's product mix
- 5Common combination patterns
- 6Common mistakes
- 7Quick revision
- 8Practice
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Two views of one scenario
A mixed set gives two representations side by side — often a table plus a pie chart, or a bar chart plus a line graph — that describe the same situation from two angles. One might give each branch's total business; the other breaks one branch's business down by product. One might plot revenue; the other, cost, over the same years.
Most questions in the set cannot be answered from one part alone. You read a figure from the first, a figure from the second, and combine them.
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