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A correlation of r 85 is found between weekly sales of firewood and cough drops...

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A correlation of r 85 is found between weekly sales of firewood and cough drops over a 1 year period Which of the following is true O a There is a pretty strong positive linear relationship between sales of firewood and cough drops O b Fire must be the cause of coughing c Temperature is a possible lurking variable that is behind this relationship O d Both a and c are true O e None of the above

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