QPSea Numeracy: Data Interpretation 3

Question 1

A table shows response times (minutes) for 6 incidents: 4, 7, 3, 9, 5, 8. What is the median response time?

Accepted Answer

6

Answer

Ordered: 3,4,5,7,8,9 — median = (5+7)/2 = 6 minutes.

Question 2

A bar chart shows stolen vehicle recoveries: Q1=48, Q2=62, Q3=55, Q4=71. By how much did recoveries change from Q1 to Q4?

Accepted Answer

+23

Answer

71 − 48 = 23 more recoveries in Q4 compared to Q1.

Question 3

A pie chart shows crime categories: Property=45%, Violent=20%, Drug=15%, Other=20%. If there were 1,200 total crimes, how many were drug-related?

Accepted Answer

180

Answer

15% of 1,200 = 0.15 × 1,200 = 180 drug-related crimes.

Question 4

A line graph shows officer sick days per month over 6 months averaging 12, 10, 14, 8, 16, 10. What is the range of sick days?

Accepted Answer

8

Answer

Range = maximum − minimum = 16 − 8 = 8 days.

Question 5

A two-way table shows arrests by gender and offence type. Males: Theft=30, Assault=20. Females: Theft=10, Assault=5. What percentage of theft arrests involved females?

Accepted Answer

25%

Answer

Female theft = 10; total theft = 40; 10/40 × 100 = 25%.

(QPSea) Queensland Police Service Entrance Assessment Practice Test

(QPSea) Queensland Police Service Entrance Assessment Practice Test

QPSea Numeracy: Data Interpretation 3