A although degreedays and gas used are correlated degreedays

A.) although degree-days and gas used are correlated, degree-days does not predict gas used very accurately.
	B.) gas used increases by ?0.98 = 0.99 cubic feet for each additional degree-day.
	C.) prediction of gas used from degree-days will be quite accurate.

Option(c) is correct.

Since the value of coefficient of determination is 98% (close to 100%) it can be concluded that 98% of the total variation in y is explained by variation in x, implying that the prediction formula is quite accurate.

A.) although degree-days and gas used are correlated, degree-days does not predict gas used very accurately. B.) gas used increases by ?0.98 = 0.99 cubic feet

A although degreedays and gas used are correlated degreedays

Solution

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