Mettl Data Interpretation & Analysis 4 — Questions and Answers
Question 1: A bar chart shows five regions' sales (in $K): North=320, South=280, East=410, West=370, Central=250. Which region has sales closest to the overall average?
- West (Correct answer)
- North
- South
- East
Correct answer: West
Average = (320+280+410+370+250)/5 = 326K; West at 370K is closest to 326K among the options.
Question 2: A grouped bar chart shows two years of data. In Year 1, Product A sold 500 units and Product B sold 300. In Year 2, A sold 450 and B sold 420. Which product had a higher growth rate (by absolute change)?
- Product B (Correct answer)
- Product A
- They are equal
- Cannot be determined
Correct answer: Product B
Product A changed by −50 units; Product B changed by +120 units, so B had a higher absolute growth.
Question 3: A bar chart shows monthly app downloads: Apr=12K, May=15K, Jun=18K, Jul=14K, Aug=20K. What is the month-over-month change from Jun to Jul?
- −22.2% (Correct answer)
- +28.6%
- −4K
- +22.2%
Correct answer: −22.2%
Change = (14K−18K)/18K × 100 = −4/18 × 100 ≈ −22.2%.
Question 4: A stacked bar chart shows total project hours split between Design and Development. Project Alpha: Design=40h, Dev=120h. Project Beta: Design=60h, Dev=90h. Which project has a higher proportion of Design hours?
- Project Beta (Correct answer)
- Project Alpha
- They are equal
- Cannot be determined
Correct answer: Project Beta
Alpha: 40/160 = 25%; Beta: 60/150 = 40% — Beta has a higher design proportion.
Question 5: A bar chart compares three departments' headcounts: HR=25, Sales=80, Engineering=120. If total company headcount is 300, what percentage are NOT in these three departments?
- 25% (Correct answer)
- 30%
- 20%
- 15%
Correct answer: 25%
(300 − 225)/300 × 100 = 75/300 × 100 = 25% are in other departments.
Question 6: A bar chart shows defect rates per 1,000 units across four factories: F1=12, F2=8, F3=15, F4=5. If each factory produces 2,000 units, how many total defects are there?
- 80
- 160 (Correct answer)
- 40
- 100
Correct answer: 160
Total defects = (12+8+15+5)/1000 × 2000 × 4 = 40 × 2 × 4 = 160 defects.
Question 7: A bar chart shows four candidates' votes: A=4,800, B=3,600, C=2,100, D=1,500. What percentage of total votes did the top two candidates receive?
- 70% (Correct answer)
- 75%
- 68%
- 80%
Correct answer: 70%
Top two (A+B) = 8,400; Total = 12,000; 8,400/12,000 = 70%.
Mettl Data Interpretation & Analysis 4
A bar chart shows five regions' sales (in $K): North=320, South=280, East=410, West=370, Central=250.
Which region has sales closest to the overall average?