SSPO Data Analysis and Interpretation 2

Question 1

A precinct records 48 burglaries in January and 36 in February. What is the percentage decrease from January to February?

Accepted Answer

25%

Answer

20%

Answer

33%

Answer

12%

Question 2

A bar chart shows vehicle thefts by day: Mon=10, Tue=15, Wed=8, Thu=12, Fri=20, Sat=18, Sun=6. On which day is the theft count closest to the weekly mean?

Accepted Answer

Thursday

Answer

Tuesday

Answer

Wednesday

Answer

Sunday

Question 3

Officers complete an average of 18 reports per week. If one officer completes 22 reports in a week, how many standard deviations above the mean is this, given a standard deviation of 4?

Accepted Answer

1.0

Answer

0.5

Answer

1.5

Answer

2.0

Question 4

A table shows calls-for-service: District A=320, District B=410, District C=275, District D=395. What percentage of all calls came from District B?

Accepted Answer

31.5%

Answer

29.3%

Answer

28.7%

Answer

33.1%

Question 5

A scatter plot shows a strong negative correlation between patrol density and crime rate. What does this relationship indicate?

Accepted Answer

Higher patrol density is associated with lower crime rates

Answer

Higher patrol density is associated with higher crime rates

Answer

Patrol density has no effect on crime rates

Answer

Crime rate causes patrol density to increase

Question 6

A crime log shows incidents at 0200, 0215, 0230, 0245, and 0300. What pattern best describes these data points?

Accepted Answer

Regular 15-minute intervals

Answer

Random clustering

Answer

Exponential growth

Answer

Bimodal distribution

Question 7

A pie chart shows complaint types: Use of Force=15%, Misconduct=25%, Response Time=40%, Other=20%. If total complaints = 200, how many are Response Time?

Accepted Answer

80

Answer

30

Answer

50

Answer

40