Civil Service Exam Data Interpretation 2 — Questions and Answers
Question 1: A table shows cases resolved by four investigators in a month: Investigator A=24, B=18, C=30, D=28. What fraction of the total cases did Investigator C resolve?
- 1/4
- 1/3
- 7/20
- 3/10 (Correct answer)
Correct answer: 3/10
Total cases = 24+18+30+28 = 100; Investigator C resolved 30/100 = 3/10.
Question 2: A line graph shows citizen complaints over five years: 2019=250, 2020=310, 2021=285, 2022=340, 2023=295. In which year did complaints show the greatest single-year decrease?
- 2023 (Correct answer)
- 2021
- 2020
- 2022
Correct answer: 2023
2021 decreased by 25 (310→285); 2023 decreased by 45 (340→295) — 2023 had the greatest decrease.
Question 3: A department's overtime table shows the IT department worked 91 hours of overtime. If overtime is paid at $35 per hour, what is the total overtime cost for the IT department?
- $2,940
- $3,185 (Correct answer)
- $3,360
- $3,045
Correct answer: $3,185
Overtime cost = 91 hours × $35/hour = $3,185.
Question 4: A city's total annual revenue is $8 million. A pie chart shows: Property Tax 42%, Sales Tax 28%, Federal Grants 18%, Fees 8%, Other 4%. How much revenue comes from Sales Tax?
- $1,920,000
- $2,100,000
- $2,240,000 (Correct answer)
- $2,400,000
Correct answer: $2,240,000
Sales Tax = 28% × $8,000,000 = $2,240,000.
Question 5: A table shows 200 job applicants by qualification level: Below Minimum=30, Meets Minimum=65, Above Minimum=75, Highly Qualified=30. What percentage of applicants meet or exceed the minimum qualification?
- 70%
- 75%
- 80%
- 85% (Correct answer)
Correct answer: 85%
Qualifying applicants = 65+75+30 = 170; 170 ÷ 200 × 100 = 85%.
Question 6: A bar chart shows annual inspections completed: 2019=1,200; 2020=980; 2021=1,450; 2022=1,380; 2023=1,560. What is the difference between the highest and lowest number of inspections?
- 580 (Correct answer)
- 480
- 520
- 560
Correct answer: 580
Highest = 1,560 (2023); Lowest = 980 (2020); Difference = 1,560 − 980 = 580.
Question 7: A frequency table shows employee years of service: 0–5 years=45, 6–10 years=38, 11–15 years=27, 16–20 years=19, 20+ years=11. What percentage of employees have more than 10 years of service?
- 35.5%
- 40.7% (Correct answer)
- 38.2%
- 42.1%
Correct answer: 40.7%
More than 10 years = 27+19+11 = 57; Total = 140; 57 ÷ 140 × 100 ≈ 40.7%.
Civil Service Exam Data Interpretation 2
A table shows cases resolved by four investigators in a month: Investigator A=24, B=18, C=30, D=28.
What fraction of the total cases did Investigator C resolve?