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Data Interpretation — Charts, Graphs & Tables

You'll see a set of 2-3 related charts/tables, followed by 3-4 questions about them.


Common formats:

Bar charts, line graphs, pie charts, tables, stacked charts


Strategy:

1. Spend 30-60 seconds understanding the data BEFORE reading questions

2. Read titles, axis labels, legends, and footnotes carefully

3. Watch for unit differences (thousands vs millions, percentages vs raw numbers)

4. Estimate when possible — exact calculation is often unnecessary


Common traps:

Pie chart shows percentages, but the question asks for actual numbers (you need the total)

Two y-axes on the same graph with different scales

"Approximately" in the question means you should estimate, not compute exactly


Time management: These questions share data. Read the data once, answer all questions. Don't re-read for each question.


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Reference:

Wikipedia: Data Visualization

image for linkhttps://en.wikipedia.org/wiki/Data_visualization

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