Police Math Test Police Math Data Interpretation Skills 3 — Questions and Answers
Question 1: A graph shows DUI arrests doubling every two years, starting at 10 in Year 0. How many arrests would the graph show in Year 4?
- 40 (Correct answer)
- 20
- 30
- 80
Correct answer: 40
10 doubles to 20 at Year 2 and to 40 at Year 4.
Question 2: A table lists ticket revenue by week: $1,200, $1,500, $900, $1,400. What is the range of weekly revenue?
- $600 (Correct answer)
- $500
- $300
- $1,400
Correct answer: $600
The range is $1,500 minus $900, which is $600.
Question 3: A chart shows 320 total incidents, of which 25% were resolved the same day. How many incidents were NOT resolved the same day?
- 240 (Correct answer)
- 80
- 160
- 200
Correct answer: 240
75% of 320 equals 240 unresolved that day.
Question 4: A scatter plot pairs patrol hours with citations. As hours rise, citations rise steadily. This relationship is best described as:
- Positive correlation (Correct answer)
- Negative correlation
- No correlation
- Inverse correlation
Correct answer: Positive correlation
Both variables increasing together indicates a positive correlation.
Question 5: A table shows 5 officers' arrest totals: 12, 15, 15, 18, 20. What is the mean number of arrests?
- 16 (Correct answer)
- 15
- 17
- 18
Correct answer: 16
The sum 80 divided by 5 officers equals 16.
Question 6: A bar graph shows 911 calls by hour, peaking at 8 PM with 48 calls and lowest at 4 AM with 6 calls. The peak is how many times the low?
- 8 times (Correct answer)
- 6 times
- 4 times
- 12 times
Correct answer: 8 times
48 divided by 6 equals 8.
Question 7: A pie chart shows traffic stops: 40% speeding, 30% equipment, 20% signals, 10% other. If there were 500 stops, how many were for signals?
- 100 (Correct answer)
- 150
- 50
- 200
Correct answer: 100
20% of 500 stops equals 100.
Police Math Test Police Math Data Interpretation Skills 3
A graph shows DUI arrests doubling every two years, starting at 10 in Year 0.
How many arrests would the graph show in Year 4?