GRE Data Interpretation Guide for Nepali Students

GRE Data Interpretation Guide for Nepali Students explains shared data sets, tables, charts, axes, units, scales, select-one, select-many, Numeric Entry and evidence-based conclusions. The workflow below protects the final response as carefully as the mathematics, including units, exactness, rounding and a reasonableness check.

Information checked on 24 July 2026 against the current ETS Quantitative Reasoning overview, official strategies, Math Review and POWERPREP information.

Key facts at a glance

Know how Data Interpretation sets work

ETS groups Data Interpretation questions around the same table, graph or other presentation. The individual questions may use either multiple-choice format or Numeric Entry.

Treat the display as a shared source, not as one long question. Each item has its own target and response rule, even though the underlying data remains the same.

Scan before studying details

ETS advises a brief scan to understand what the presentation is about without spending time on every value. Read the title, axes, scale, units, categories, legend and notes.

Then focus only on the portion needed for the current question. A complete transcription of the display wastes time and creates opportunities for copying errors.

State the population and time period

Identify who or what the data describes and when it was measured. A percentage for one year or subgroup cannot automatically be applied to another.

Write a short source sentence such as “The graph shows annual enrolment in thousands by programme from 2022 to 2026.” This anchors every calculation.

Read axes and scales

Check tick intervals, units and whether an axis begins at zero. ETS warns about broken scales and bars that do not start at zero.

Graphical data presentations are drawn to scale, so visual estimation is permitted according to the displayed scale. Use labels for exact values when available.

Handle orders of magnitude

A heading may state thousands, millions or billions once rather than beside every value. Carry that multiplier into the final unit.

For ratios and percentages, a shared magnitude may cancel. For absolute totals, it does not. Decide before calculating.

Read tables without drifting

Trace the exact row and column labels to their intersection. Confirm subtotal, total and percentage columns are not confused.

When several categories have similar names, mark the selected row on scratch paper. Do not rely on memory across calculations.

Interpret bar charts

Bar charts compare category values. Read bar endpoints against the stated scale and distinguish grouped, stacked and percentage bars.

For stacked bars, a segment’s value is the difference between its upper and lower boundaries, not necessarily the upper coordinate itself.

Interpret line graphs

Line graphs often show change across ordered values such as time. Distinguish the level at a point from the change between points and the average rate over an interval.

A steep visual segment must be interpreted with both axis scales. Compare numeric change when charts use different ranges.

Compare multiple displays

When a set combines a table and graph, identify the population, period and unit of each before linking them. A percentage chart and a total-count table may require multiplication, not direct visual comparison.

Write a short conversion bridge such as “category amount = category share × annual total.” This prevents using a value from one display with the wrong denominator from another.

Interpret circle graphs

A circle chart displays parts of a whole. Convert a percentage to a quantity by multiplying by the stated total.

Do not compare sector angles across charts with different totals as though they were absolute amounts. Confirm whether labels are exact or rounded.

Interpret boxplots

A boxplot displays median, quartiles and spread under the stated convention. Compare centre and interquartile range separately.

A longer visual interval shows greater value spread, not more observations. Do not infer frequency from box or whisker length.

Interpret scatterplots

Look for direction, strength, form, clusters and outliers. A positive association tends upward; a negative association tends downward.

Association alone does not prove causation. Choose only conclusions directly supported by the display and mathematics.

Calculate absolute and percent change

Absolute change equals new minus old. Percent change divides that change by the original value. Keep the base explicit.

When comparing categories with different starting values, a larger absolute change can coexist with a smaller percent change.

Handle cumulative and interval values

A cumulative graph reports a running total. The amount added during an interval equals the later cumulative value minus the earlier one, not the later value alone.

Similarly, a frequency for a range may represent an interval rather than a single point. Read endpoint inclusion and bin labels before combining categories.

Treat missing or estimated data carefully

A blank cell, unavailable category or estimated marker has the meaning specified by the note; it does not automatically mean zero. Do not invent a value to complete a total unless the other information determines it.

If values are rounded, accept that displayed parts may not sum perfectly. Use the precision the question and options require rather than claiming an unsupported exact result.

Use weighted averages

For combined groups, reconstruct each sum as mean × count, add sums and divide by total count. Do not average group means unless group sizes are equal.

Estimate the combined mean: it must lie between the group means and closer to the mean of the larger group.

Work with ratios and rates

Keep category order and units attached. Reduce only after confirming that numerator and denominator use compatible populations or periods.

A rate per person, year or unit requires the matching denominator. A total cannot substitute for a rate.

Use only permitted evidence

ETS instructs test takers to answer from the displayed data, everyday facts and mathematics. Do not use specialised information remembered from outside the question unless it can be derived from the presentation.

A familiar real-world topic can tempt you to fill gaps with assumptions. Separate what the display proves from what seems plausible.

Handle multiple questions independently

Do not carry an earlier answer into a later item as an unstated fact. Return to the display and the new prompt.

You may reuse a correctly computed subtotal, but label it clearly and confirm the denominator or time period has not changed.

Manage select-one responses

Use the choices to determine required precision and to check whether your result matches the requested quantity. If no option fits, reread units, scale and target.

Backsolve only when it reduces work. Direct display reading is often faster.

Manage all-that-apply responses

Evaluate every choice independently against the data. An all-that-apply question can have only one correct answer.

Reject statements that are merely possible when the question asks what must be true. Match the logical strength of the wording.

Manage Numeric Entry responses

Read labels around the field, preserve exactness unless rounding is specified and carry units or magnitude correctly.

Estimate from the graph before entering. A value outside the visual range usually signals a scale or denominator error.

Use the calculator selectively

The calculator helps with totals, division and square roots, but it cannot identify the correct cells or denominator. Estimate first.

For a close comparison, retain sufficient precision. For widely separated choices, visual bounds may avoid unnecessary computation.

Manage time across a set

The first careful scan should reduce repeated reading. Answer direct lookup questions quickly and mark calculations with unresolved scale or interpretation issues.

Do not let one difficult item consume the entire benefit of a shared display. Later questions may be independent and easier.

Build an evidence matrix for conclusions

For must-be-true or supported-statement questions, make two columns: claim and exact evidence. Check population, period, unit and logical strength for each option.

Reject a claim that generalises beyond the display, confuses association with causation or changes “some” into “all.” This explicit matrix is especially useful for all-that-apply items.

Keep a Data Interpretation error log

Classify misses as wrong row or column, axis error, magnitude error, broken-scale oversight, denominator mistake, unsupported inference, response-format error or calculator entry.

Revisit the display and write the exact evidence supporting the correct answer. Then create a related calculation with another row or period.

Practise with official resources

Use the ETS Quantitative Reasoning overview for current set formats and official tips. Use the Math Review for statistics and POWERPREP for realistic displays and timing.

Practise sets with tables, bar charts, line graphs, circle charts, boxplots and scatterplots. Review accurate but slow readings.

Follow a seven-step interpretation routine

Read title and units; identify population; locate needed values; define numerator and denominator; estimate; calculate; then state the result in context and required format.

For conclusion questions, point to the exact visual or numeric evidence before selecting.

Connect testing with applications

For university planning, documents and overseas-study guidance, visit MKS Education. For structured GRE preparation, explore MKS Prep. Check programme testing policies directly.

Align practice, score reporting and application deadlines, and prioritise weaknesses shown by timed official sets.

Frequently asked questions