Mathematics, 18.04.2021 09:50 ravensenpai423

A manager at a gas station realized that there appeared to be a quadratic relationship between the price he charged for a doughnut and the number he sold for the day. What is the coefficient of determination (r^2) for the following data set using a quadratic model?

Answer choice:
a) ≈0.026
b) ≈0.160
c) ≈0.929
d) ≈0.964

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