Question: Consider the following scatter plot depicting the relationship between the number of dental caries (number of caries per 100 children) and the level of fluoridation

Consider the following scatter plot depicting the relationship between the number of dental caries (number of caries per 100 children) and the level of fluoridation of the public water supply (fluoride parts per million).

What is the general relationship of fluoride level and the number of caries is (r is the correlation coefficient)?

a.Strongly positive (r>0)

b.Strongly negative (r

c.There is no relationship (r=0)

Consider the following scatter plot depicting the relationship between the number of

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