Ohio Civil Service Exam Data Interpretation and Analysis 3

Question 1

A table shows inspection results across 5 districts. District 3 had 18 violations out of 60 inspections. What is its violation rate?

Accepted Answer

30%

Answer

18 violations divided by 60 inspections equals 0.30, or 30%.

Question 2

A line graph shows that tax revenue increased steadily for three years then dropped sharply in year four. Which term best describes the year-four trend?

Accepted Answer

Decline

Answer

A sharp downward movement in data after a period of growth is described as a decline.

Question 3

A double bar chart compares 2024 and 2025 case closures for four units. Unit B shows 210 closures in 2024 and 252 in 2025. What is Unit B's year-over-year increase?

Accepted Answer

20%

Answer

The increase of 42 divided by the 2024 base of 210 equals exactly 20%.

Question 4

A dataset of employee salaries has a mean of $52,000 and a median of $44,000. What does this gap suggest?

Accepted Answer

A few high salaries are pulling the mean upward

Answer

When the mean exceeds the median significantly, it indicates positive skew caused by a few high outlier values.

Question 5

A report states that calls to a hotline increased by 150% over two years. If the original call volume was 800 per month, what is the current volume?

Accepted Answer

2,000

Answer

A 150% increase means adding 150% of 800 (=1,200) to the original 800, totaling 2,000.

Ohio Civil Service Exam Practice Test

Ohio Civil Service Exam Practice Test

Ohio Civil Service Exam Data Interpretation and Analysis 3