Over the past 50 years for a partiular city there was a farily strong positive l

Question

Over the past 50 years for a partiular city there was a farily strong positive linear relationship between its crime rate and the number of churches it has. Which two conclusions can be made from this? Choose 2 answers.

a. The variable "numbe rof churses" can be used to only predict the "crime rate"

b. The crime rate can be lowered by getting rid of the churches

c. increasing the number of churches in the city has caused the crime rate to go up

d. the churches cause crime to increase int eh cities where they are located.

e. the population increase for the city over the past 50 yers is a lurking variable that could influce both the crime rate and the number of churches.

I picked D and E. Please explain.

Explanation / Answer

From the given information, thereexist a strong positive linear relationship between crime rate and number of churches it has, that is, whatever be the change in one variable effects the corresponding change in the other variable in the same direction.

(c) The variable number of churches can be used to only predict the crime rate, because thereexist strong positive linear relaionship, that is, as the number of churches increases so that the crime rate also increases accordingly.

(b) the crime rate can be lowered by getting rid of the churches, as thereexist a strong positive linear relationship, that is, as the number of churches getting rid so that the crime rate can be lowered.

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