Practice Test Geeks(FAST) Future Aptitude Selection Tool Practice Test
← All FAST Flashcard Decks

Data Visualization and Interpretation Flashcards

7 cards from real FAST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Data Visualization and Interpretation flashcards as text

  1. A heat map uses color intensity to represent data values, with darker colors indicating higher values. A region appears very light. What does this indicate?

    Answer: A low value in that region

    In a heat map where darker = higher, a light-colored region represents a low value.

  2. A cumulative frequency graph (ogive) shows that the 60th percentile corresponds to a score of 78. What does this mean?

    Answer: 60% of scores are at or below 78

    The 60th percentile means 60% of values fall at or below that score, so 60% of scores are at or below 78.

  3. A pie chart and a bar chart display the same budget data. For comparing the exact size of two nearly equal categories, which chart type is more effective?

    Answer: Bar chart, because lengths are easier to compare accurately than angles

    Humans compare lengths more accurately than angles, making bar charts superior for distinguishing nearly equal values.

  4. A line graph shows a company's stock price over 12 months. The graph has a y-axis scale from $0 to $500, but all values fall between $480 and $495. What improvement would make the chart most informative?

    Answer: Rescale the y-axis to $475–$500

    Rescaling the y-axis to the range of actual data ($475–$500) would make the small fluctuations visible and meaningful.

  5. A table shows that City A's crime rate dropped from 80 to 72 per 100,000 people, while City B's dropped from 40 to 36. Which city had the greater absolute decrease?

    Answer: City A with a decrease of 8

    City A decreased by 80 − 72 = 8, while City B decreased by 40 − 36 = 4; City A had the greater absolute decrease.

  6. A radar (spider) chart has six axes representing different competencies. A candidate's scores form a large, nearly circular polygon. What does this suggest?

    Answer: The candidate has consistently high scores across all competencies

    A large, nearly circular polygon on a radar chart means the candidate scored highly and consistently across all measured dimensions.

  7. A data table shows that as advertising spending increases by $1,000, sales increase by $5,000. A researcher concludes that advertising causes sales. What flaw exists in this reasoning?

    Answer: Correlation does not prove causation

    A consistent relationship between two variables (correlation) does not establish that one causes the other — a third factor could explain both.