Mettl Data Interpretation Skills 3 — Questions and Answers
Question 1: A double bar chart shows male and female applicants per department: HR (M=20, F=40), IT (M=60, F=30), Finance (M=25, F=35). Which department has the highest total applicants?
- HR
- IT (Correct answer)
- Finance
- HR and Finance tied
Correct answer: IT
IT total = 90, HR total = 60, Finance total = 60, making IT the highest.
Question 2: A line graph shows website traffic over 5 days: Mon=1,200, Tue=1,500, Wed=900, Thu=1,800, Fri=1,600. What is the median daily traffic?
- 1,200
- 1,400
- 1,500 (Correct answer)
- 1,600
Correct answer: 1,500
Sorted values: 900, 1200, 1500, 1600, 1800 — the middle value (3rd) is 1,500.
Question 3: A stacked bar chart shows total project hours split between development and testing: Project A (Dev=120, Test=30), Project B (Dev=80, Test=70). What percentage of Project B's hours were spent on testing?
- 35%
- 37.5%
- %46.7
- 46.7% (Correct answer)
Correct answer: 46.7%
Testing share = 70/(80+70) = 70/150 = 46.7%.
Question 4: A table shows unit costs at different production volumes: 100 units=$50, 500 units=$40, 1,000 units=$32, 5,000 units=$25. This pattern best illustrates:
- Diminishing returns
- Economies of scale (Correct answer)
- Diseconomies of scale
- Fixed cost behavior
Correct answer: Economies of scale
Decreasing unit cost as volume increases is the classic definition of economies of scale.
Question 5: A pie chart shows budget allocation: Salaries=60%, Marketing=20%, Operations=12%, R&D=8%. If the total budget is $5M, how much more is spent on Salaries than on Marketing and Operations combined?
- $700,000
- $1,400,000 (Correct answer)
- $2,000,000
- $1,000,000
Correct answer: $1,400,000
Salaries=$3M; Marketing+Operations=($1M+$0.6M)=$1.6M; difference=$1.4M.
Question 6: A bar graph shows quarterly revenue for two years. Q3 Year 1=$80K and Q3 Year 2=$68K. What is the percentage decrease?
- 12%
- 15% (Correct answer)
- 17.6%
- 20%
Correct answer: 15%
Decrease = (80−68)/80 × 100 = 12/80 × 100 = 15%.
Question 7: A data table has missing values. Row totals are 50, 70, 80 and the grand total is 200. One row sub-total shows 45 with a missing second column value. What is the missing value?
- 5 (Correct answer)
- 25
- 35
- 50
Correct answer: 5
The missing value = row total (50) − known sub-total (45) = 5.
Mettl Data Interpretation Skills 3
A double bar chart shows male and female applicants per department: HR (M=20, F=40), IT (M=60, F=30), Finance (M=25, F=35).
Which department has the highest total applicants?