Data Interpretation Flashcards

A table shows website visits over 5 days: Mon=1,200, Tue=950, Wed=1,100, Thu=1,300, Fri=1,450. By what percent did visits increase from Tuesday to Friday?

Answer: 52.6%

Increase = 1,450 − 950 = 500; percent increase = 500/950 × 100 ≈ 52.6%.

A double bar chart compares male and female enrollment in 3 courses: Math (M=30, F=20), Science (M=25, F=35), English (M=15, F=40). Which course has the highest female-to-male ratio?

Answer: English

English ratio = 40/15 ≈ 2.67, Science = 35/25 = 1.4, Math = 20/30 ≈ 0.67; English is highest.

A graph shows a company's revenue grew from $2M to $3.5M over 5 years. What was the average annual increase in revenue?

Answer: $300,000

Total increase = $1.5M over 5 years; average annual increase = $1.5M ÷ 5 = $300,000.

A pie chart divides 360 survey respondents by preference: Option A=45%, Option B=30%, Option C=25%. How many more people preferred Option A over Option C?

Answer: 72

A = 0.45×360 = 162; C = 0.25×360 = 90; difference = 162−90 = 72.

A table shows production output per worker per day: Week 1=12 units, Week 2=15 units, Week 3=13 units, Week 4=16 units, Week 5=14 units. What is the range of output values?

Answer: 4 units

Range = maximum − minimum = 16 − 12 = 4 units.

A line graph tracks stock price over 4 months: Jan=$50, Feb=$60, Mar=$45, Apr=$55. Which statement best describes the overall trend?

Answer: Net increase with volatility

The price starts at $50 and ends at $55 (net +$5) but fluctuates up and down in between.

A table shows shipping costs by weight: 0–5 lbs=$8, 6–10 lbs=$14, 11–20 lbs=$22, 21–30 lbs=$35. What is the cost difference between shipping a 4 lb package and a 25 lb package?

Answer: $27

4 lbs falls in the 0–5 lb tier ($8); 25 lbs falls in the 21–30 lb tier ($35); difference = $35 − $8 = $27.