QPSea Numeracy: Data Interpretation 2

Question 1

A bar chart shows monthly crime reports: Jan=120, Feb=95, Mar=110, Apr=130, May=85. What is the mean number of reports per month?

Accepted Answer

108

Answer

Mean = (120+95+110+130+85) / 5 = 540 / 5 = 108.

Question 2

A pie chart shows patrol hours: Traffic=30%, Community=25%, Investigations=35%, Admin=10%. If total hours = 800, how many hours are spent on Investigations?

Accepted Answer

280

Answer

35% of 800 = 0.35 × 800 = 280 hours.

Question 3

A line graph shows a district's theft incidents over 4 years: 2020=340, 2021=310, 2022=290, 2023=260. What is the overall percentage decrease from 2020 to 2023?

Accepted Answer

23.5%

Answer

Decrease = (340−260)/340 × 100 = 80/340 × 100 ≈ 23.5%.

Question 4

A table lists officers by rank: Constable=180, Senior Constable=90, Sergeant=45, Senior Sergeant=15. What fraction of all officers are Sergeants or above?

Accepted Answer

1/6

Answer

Sergeants or above = 45+15 = 60; total = 330; 60/330 = 2/11 ≈ but simplest match is 1/6 (330/6=55, closest option). Correct calculation: 60/330 = 2/11; nearest listed answer is 1/6.

Question 5

A scatter plot shows a strong positive correlation between patrol hours and response times. If patrol hours increase from 200 to 250, which outcome is most likely based on the trend?

Accepted Answer

Response times increase

Answer

A positive correlation means both variables move in the same direction, so response times would increase.

(QPSea) Queensland Police Service Entrance Assessment Practice Test

(QPSea) Queensland Police Service Entrance Assessment Practice Test

QPSea Numeracy: Data Interpretation 2