Revelian Test Data Interpretation Skills 5 — Questions and Answers
Question 1: A line graph shows website traffic: Mon=1,200, Tue=1,450, Wed=1,300, Thu=1,600, Fri=1,500. What day had the greatest single-day increase over the previous day?
- Tuesday (Correct answer)
- Thursday
- Friday
- Wednesday
Correct answer: Tuesday
Tuesday increased by 250 (from 1,200 to 1,450), the largest single-day jump.
Question 2: A table shows that 600 of 2,400 survey respondents prefer Product X. What percentage prefer Product X?
- 25% (Correct answer)
- 30%
- 20%
- 15%
Correct answer: 25%
600/2,400 × 100 = 25%.
Question 3: A double bar chart compares male and female sales representatives' quarterly totals. In Q3, male reps sold 320 units and female reps sold 400 units. What fraction of total Q3 sales did female reps represent?
- 5/9 (Correct answer)
- 4/9
- 2/3
- 1/2
Correct answer: 5/9
Total = 720; female share = 400/720 = 5/9.
Question 4: A scatter plot shows no clear pattern between hours of sleep and work performance scores. What type of correlation does this suggest?
- No correlation (Correct answer)
- Positive correlation
- Negative correlation
- Perfect correlation
Correct answer: No correlation
A random scatter with no discernible pattern indicates no linear correlation between the variables.
Question 5: A table shows cost per unit at different production volumes: 100 units=$15, 500 units=$12, 1,000 units=$10, 5,000 units=$8. This pattern illustrates which concept?
- Economies of scale (Correct answer)
- Diminishing returns
- Fixed costs rising
- Inflation
Correct answer: Economies of scale
Unit costs declining as production volume increases is the definition of economies of scale.
Question 6: A line graph shows that two competing brands' sales trends are moving in opposite directions over the same 12-month period. What does this most likely indicate?
- One brand is gaining market share at the other's expense (Correct answer)
- Total market demand is growing
- Both brands are equally profitable
- The data has an error
Correct answer: One brand is gaining market share at the other's expense
When one competitor's sales rise as another's fall in the same period, it typically signals a market share shift.
Question 7: A bar chart displays the number of support tickets resolved per agent in a week: Agent 1=48, Agent 2=52, Agent 3=45, Agent 4=60, Agent 5=55. What is the range of tickets resolved?
- 15 (Correct answer)
- 12
- 10
- 8
Correct answer: 15
Range = maximum − minimum = 60 − 45 = 15.
Revelian Test Data Interpretation Skills 5
A line graph shows website traffic: Mon=1,200, Tue=1,450, Wed=1,300, Thu=1,600, Fri=1,500.
What day had the greatest single-day increase over the previous day?