Concept explainers
Nutrition. Use the data in Exercise 23.
a. Use regression to fit a quadratic function to the data.
b. Use the function from part (a) to predict the number of calories needed daily by a physically active 30-yr-old woman.
c. c) Compare your answer from part (b) with that from part (d) of Exercise 23. Which answer do you feel is more accurate? Why?
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