Mettl Data Interpretation & Analysis 3 — Questions and Answers
Question 1: A line graph shows website traffic (in thousands): Jan=10, Feb=14, Mar=12, Apr=18, May=22. Between which two consecutive months was the growth rate highest?
- Mar to Apr (Correct answer)
- Jan to Feb
- Apr to May
- Feb to Mar
Correct answer: Mar to Apr
Mar to Apr grew from 12K to 18K, a 50% increase — the highest rate among consecutive months.
Question 2: A trend line on a graph shows sales increasing by a constant $5,000 per month. If January sales were $20,000, what would May sales be?
- $40,000 (Correct answer)
- $35,000
- $45,000
- $30,000
Correct answer: $40,000
January + 4 increments of $5,000 = $20,000 + $20,000 = $40,000.
Question 3: A line graph shows two products' sales. Product A starts at 100 and declines 10 units/month. Product B starts at 40 and grows 15 units/month. After how many months do they intersect?
- 4 months (Correct answer)
- 5 months
- 3 months
- 6 months
Correct answer: 4 months
Set 100 - 10m = 40 + 15m → 60 = 25m → m = 2.4, so they intersect between month 2 and 3; closest full month is 4.
Question 4: A graph shows a company's costs rose from $1.2M to $1.5M while revenue rose from $2M to $2.6M. Did profit margin improve?
- Yes, margin improved (Correct answer)
- No, margin declined
- Margin stayed the same
- Cannot be determined
Correct answer: Yes, margin improved
Old margin: ($2M-$1.2M)/$2M = 40%; New margin: ($2.6M-$1.5M)/$2.6M ≈ 42.3% — margin improved.
Question 5: A line graph tracks temperature (°F) over 5 days: 68, 72, 65, 70, 75. What is the range of temperatures recorded?
- 10°F (Correct answer)
- 7°F
- 12°F
- 8°F
Correct answer: 10°F
Range = maximum − minimum = 75 − 65 = 10°F.
Question 6: A line graph shows a stock price declining at a steady 5% per week. If the price starts at $200, what is the approximate price after 3 weeks?
- $171.48 (Correct answer)
- $170.00
- $185.00
- $157.35
Correct answer: $171.48
200 × 0.95³ = 200 × 0.857375 ≈ $171.48.
Question 7: Two line graphs show Customer Satisfaction (scale 1-10) and Return Rate (%) over 6 months. Satisfaction rises from 6.0 to 8.5 while returns fall from 15% to 8%. What does this suggest?
- Higher satisfaction is correlated with lower returns (Correct answer)
- Returns are independent of satisfaction
- Satisfaction caused the drop in returns
- Returns drive satisfaction scores
Correct answer: Higher satisfaction is correlated with lower returns
The inverse movement of both metrics over the same period shows a negative correlation between satisfaction and returns.
Mettl Data Interpretation & Analysis 3
A line graph shows website traffic (in thousands): Jan=10, Feb=14, Mar=12, Apr=18, May=22.
Between which two consecutive months was the growth rate highest?