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Data Interpretation Flashcards

7 cards from real Civil Service Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  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?

    Answer: 3/10

    Total cases = 24+18+30+28 = 100; Investigator C resolved 30/100 = 3/10.

  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?

    Answer: 2023

    2021 decreased by 25 (310→285); 2023 decreased by 45 (340→295) — 2023 had the greatest decrease.

  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?

    Answer: $3,185

    Overtime cost = 91 hours × $35/hour = $3,185.

  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?

    Answer: $2,240,000

    Sales Tax = 28% × $8,000,000 = $2,240,000.

  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?

    Answer: 85%

    Qualifying applicants = 65+75+30 = 170; 170 ÷ 200 × 100 = 85%.

  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?

    Answer: 580

    Highest = 1,560 (2023); Lowest = 980 (2020); Difference = 1,560 − 980 = 580.

  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?

    Answer: 40.7%

    More than 10 years = 27+19+11 = 57; Total = 140; 57 ÷ 140 × 100 ≈ 40.7%.