Correlation Coeffcient
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Sabin Motorcycle Works plans to develop a brochure for its new revolutionary X2B cycle. One of the facets to be explored and reported on is the speed-mileage question: Is there a linear relationship between the cycle's speed and miles per gallon? Tests on their track revealed the following:
Constant speed
(miles per hour) Miles per gallon
X Y
40 54
30 60
70 37
50 46
60 48
Compute the coefficient of correlation, and evaluate its strength.
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