A physical-fitness researcher tests 25 professional football players, finding that the time required to run 40 yards

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A physical-fitness researcher tests 25 professional football players, finding that the time required to run 40 yards (y, in seconds) is related to weight (x, in pounds) by the least-squares equation ŷ = - 2.0 + 0.038x. According to this equation, a person weighing 200 pounds would run the 40-yard dash in an estimated time of 5.6 seconds. However, a child weighing 55 pounds would have an estimated time of just 0.09 seconds to run 40 yards. Briefly explain how this unlikely result could have been obtained.


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