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StatisticsQ&A LibraryA correlation of r = .79 is found between weekly sales of firewood and cough drops over a 1-year period. Which of the following is true? (a) There is a pretty strong positive linear relationship between sales of firewood and cough drops. (b) Fire must be the cause of coughing. (C) Temperature is a possible lurking variable that is behind this relationship. (d) Both (a) and (c) are true. (e) None of the above.Start your trial now! First week only $4.99!*arrow_forward*

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Transcribed Image Text

A correlation of r = .79 is found between weekly sales of firewood and cough drops over a 1-year period. Which of the following is true? (a) There is a pretty strong positive linear relationship between sales of firewood and cough drops. (b) Fire must be the cause of coughing. (C) Temperature is a possible lurking variable that is behind this relationship. (d) Both (a) and (c) are true. (e) None of the above.