The following table presents the number of police officers (per 100,000 citizens) and the annual murder rate (per 100,000 citizens) for a sample of cities.
Police Officers (per 100,000) Murders (per 100,000 per yr) 1109 46 1238 44 1235 38 1298 40 1077 49 1076 42
The correlation coefficient between the per capita number of police officers and the per capita murder rates -0.666. Which of the following is the best interpretation of the correlation coefficient?
A)Higher murder rates make it more difficult for cities to hire police officers.
B)The per capita number of police officers and the per capita murder rates arepositively associated.
C)More per capita police officers results in fewer per capita murders.
D)The per capita murder rate tends to go down as the per capita number of policeofficers goes up.