Bharatiya Pathshala
Opening preparation notes...
Data Insights / GMAT question formats
Graphics Interpretation: concepts, worked examples and practice.
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Start with the basics
Graphics interpretation means reading a graph’s axes, scale and labels, then translating them into quantities.
A bar reaches the tick labelled 20 on an axis marked “students”. What quantity does it show?
Remember: Check whether the axis starts at zero and whether its steps are equal.
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Practise sufficiency, table analysis, graphics, multiple sources and paired choices. Learn each response format using GMAC official samples.
Explain the idea in your own words before opening the answer. Then apply it to the example.
Explain the main rule in graph relationships, then apply it to a small example. State the assumption that makes your reasoning valid.
Review the noteA graph can show association without proving causation. Distinguish a positive trend from a perfectly proportional relationship.
Worked example: If study time and scores tend to rise together, the graph supports association. It does not prove that extra study time alone caused all score differences.
Explain the main rule in axes scales and trends, then apply it to a small example. State the assumption that makes your reasoning valid.
Review the noteCheck linear versus logarithmic scales, units, missing baselines and the meaning of each point. Do not extrapolate beyond evidence without a stated model.
Worked example: On a linear axis, values 10,20,30 have equal gaps. On a logarithmic axis, equal gaps can instead represent equal ratios such as 10,100,1000.
BEGINNER
The bar reaches 20 on an axis measured in students.
Source record: Bharatiya Pathshala — original illustrated lessons.