Data Interpretation & Analysis Flashcards

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?

Answer: Mar to Apr

Mar to Apr grew from 12K to 18K, a 50% increase — the highest rate among consecutive months.

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?

Answer: $40,000

January + 4 increments of $5,000 = $20,000 + $20,000 = $40,000.

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?

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.

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?

Answer: Yes, margin improved

Old margin: ($2M-$1.2M)/$2M = 40%; New margin: ($2.6M-$1.5M)/$2.6M ≈ 42.3% — margin improved.

A line graph tracks temperature (°F) over 5 days: 68, 72, 65, 70, 75. What is the range of temperatures recorded?

Answer: 10°F

Range = maximum − minimum = 75 − 65 = 10°F.

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?

Answer: $171.48

200 × 0.95³ = 200 × 0.857375 ≈ $171.48.

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?

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.