SNAP Data Interpretation and Data Sufficiency Syllabus

Data Interpretation and Data Sufficiency syllabus — full chapter and topic list

Expand any chapter to see its topics and sub-topics. This is the whole examinable outline for Data Interpretation and Data Sufficiency in SNAP, not a summary of it.

1. 1

   Data Interpretation - Charts and Graphs

   4 topics

   • Tables
     • Single and multi-column tables
     • Missing-value tables
   • Bar Graphs
     • Simple and stacked bar charts
   • Line Graphs
     • Single and multiple line trends
   • Pie Charts
     • Single and comparative pie charts
2. 2

   Advanced and Caselet DI

   4 topics

   • Caselet-Based DI
     • Paragraph-to-data conversion
   • Mixed and Combination Charts
   • Radar and Bubble Charts
   • Reasoning-Based DI
     • DI combined with arrangements and conditions
3. 3

   Calculation Techniques for DI

   3 topics

   • Approximation and Estimation
   • Percentage and Ratio Shortcuts
   • Fraction-Percentage Conversions
4. 4

   Data Sufficiency

   3 topics

   • Structure and Answer Framework
     • Standard two-statement format
     • Decision rules for sufficiency
   • Quant-Based Data Sufficiency
     • Arithmetic and algebra statements
     • Geometry statements
   • Reasoning-Based Data Sufficiency

Data Interpretation and Data Sufficiency flashcards for SNAP

22 of 51 cards from the Data Interpretation and Data Sufficiency deck — real questions with worked answers.

1. In a Data Interpretation table, what is the standard first step before attempting any calculation?

   Read the title, row headings, column headings, and the unit/footnotes carefully to understand exactly what each cell represents, so you don't misread quantities, units, or totals.

2. In a DI table, how do you compute the percentage contribution of one cell to its row total?

   Percentage contribution = (cell value / row total) x 100. The row total is the sum of all cells in that row.

3. When a table gives values across years, how is the percentage growth from one year to the next calculated?

   Percentage growth = ((current year value - previous year value) / previous year value) x 100. A negative result means a decline.

4. What is the main advantage of a table over a graph in Data Interpretation?

   A table gives exact numerical values with no estimation needed, allowing precise calculation; graphs only show approximate visual magnitudes.

5. In a bar graph, what does the height (or length) of each bar represent?

   The height/length of a bar is proportional to the value of the quantity it represents, measured against the scale on the value axis.

6. What is the difference between a simple bar graph and a grouped (multiple) bar graph?

   A simple bar graph shows one data series with one bar per category; a grouped bar graph places several bars side by side per category to compare multiple series across the same categories.

7. What does a stacked (component) bar graph show that a grouped bar graph does not?

   A stacked bar graph shows the total per category (full bar height) and the contribution of each component as segments within the bar, so you see both parts and whole.

8. In a bar graph, how do you find the value of a bar that falls between two scale gridlines?

   Estimate proportionally between the two nearest gridlines based on where the bar top lies, using the interval size of the scale to interpolate.

9. What does each point on a line graph represent, and what does the connecting line indicate?

   Each point represents a data value at a specific category/time; the connecting line shows the trend or change in that value between successive points.

10. On a line graph, how do you identify the period of greatest increase?

    Find the segment with the steepest upward slope; the steeper the line between two points, the larger the increase over that interval.

11. When two lines on a line graph intersect, what does the point of intersection signify?

    It signifies the point where the two quantities are equal in value at that particular category or time.

12. What is the key benefit of a line graph compared with a bar graph?

    A line graph is better at showing trends and continuous change over time, making rising, falling, and fluctuating patterns easy to spot.

13. In a pie chart, how many degrees does the whole circle represent and what does it stand for?

    The whole circle is 360 degrees and represents the total (100%) of the quantity being divided into parts.

14. How do you convert a percentage share in a pie chart into degrees of the central angle?

    Central angle (degrees) = (percentage / 100) x 360, equivalently percentage x 3.6 degrees per 1%.

15. How do you convert a central angle in a pie chart back into a percentage?

    Percentage = (central angle / 360) x 100, equivalently central angle divided by 3.6.

16. If a pie chart shows percentages and you know the total absolute value, how do you find a sector's absolute value?

    Sector value = (sector percentage / 100) x total value.

17. What is the main limitation of a pie chart in Data Interpretation?

    A pie chart only shows proportional shares of a single total; it cannot show absolute values directly unless the total is given, and comparing many similar-sized slices is hard.

18. What is a caselet in Data Interpretation?

    A caselet is a DI set where the data is presented as a paragraph of text rather than a table or chart, and you must extract and organize the figures yourself.

19. What is the recommended approach to solving a caselet DI set?

    Read the passage carefully, convert the textual data into your own table or diagram (Venn diagram, grid, or table), then apply normal DI calculations to the organized data.

20. What type of diagram is often most useful for caselets involving overlapping groups or categories?

    A Venn diagram, which clearly represents intersections, unions, and exclusive portions of overlapping sets.

21. What is a mixed (combination) chart in Data Interpretation?

    A combination chart presents two or more chart types together (e.g., a bar graph plus a line graph, or a table plus a pie chart) requiring you to relate data across both representations.

22. In a combination bar-and-line chart, how are the two data series typically distinguished?

    Bars usually represent absolute quantities on the primary (left) axis, while the line represents a related measure such as a percentage, ratio, or growth rate, often on a secondary (right) axis.

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