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GMAT Data Interpretation — practice by topic

Browse 63 questions across 7 Data Interpretation topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Data Interpretation topics

Data Interpretation (30)DI - Bar and Pie Charts (29)DI — Tables (29)Quantitative Aptitude (29)Charts (2)Percentages (1)Tables (1)

Try a Data Interpretation question

A bar graph is best used to show:Read the answer and worked solution →A pie chart represents data as:Read the answer and worked solution →A histogram is used for:Read the answer and worked solution →Line graphs are most useful for showing:Read the answer and worked solution →

Worked practice questions

A bar graph is best used to show:

  1. Continuous time series
  2. Comparison among categories
  3. Geographic data
  4. Recipes
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Correct answer: B. Comparison among categories

1. Bar graphs visualise categorical comparisons. 2. Line graphs handle continuous time series. 3. Hence comparison among categories. _Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Bar Graphs_

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A pie chart represents data as:

  1. Bars
  2. Lines
  3. Slices of a circle proportional to value
  4. Points
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Correct answer: C. Slices of a circle proportional to value

1. Pie chart divides 360° proportionally. 2. Each slice corresponds to a category's share. 3. Hence option B. _Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Pie Charts_

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A histogram is used for:

  1. Recipe instructions
  2. Cause-effect mapping
  3. Comparing two categories only
  4. Frequency distribution of continuous data
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Correct answer: D. Frequency distribution of continuous data

1. Histograms show frequency on the y-axis, intervals on x. 2. Used for continuous, grouped data. 3. Hence frequency distribution of continuous data. _Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Histogram_

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