The following table presents the number of police officers (per 100,000 citizens

Question

The following table presents the number of police officers (per 100,000 citizens) and the  murder rate (per 100,000 citizens) for a sample of cities.



The correlation coefficient between the per capita number of police officers and the per  murder rates -0.666. Which of the following is the best interpretation of the correlation coefficient?

Select one:

A. Higher murder rates make it more difficult for cities to hire police officers.

B. More per capita police officers results in fewer per capita murders.

C. The per capita murder rate tends to go down as the per capita number of police officers goes up.

D. The per capita number of police officers and the per capita murder rates are positively associated.

Explanation / Answer

correlation coefficient = -0.66, Strong negative correlation. Bothe the variables go in opposite direction

C. The per capital murder rate tends to go down as the per capital number of police officers goes up

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