A correlation coefficient of -1.0 between two sets of numbers indicates_______
A. a positive correlation between two sets
B. that when one set of numbers goes up, so does the other set
C. that when one set of numbers goes up, the other goes down
D. a complete lack of any correlation between the two sets
E. an indefinite relationship between the two sets
Answer: C. that when one set of numbers goes up, the other goes down
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