In Exercises 6770, find the least squares regression parabola for the points . . . , by
Chapter 7, Problem 67(choose chapter or problem)
In Exercises 6770, find the least squares regression parabola for the points . . . , by solving the following system of linear equations for and Then use the regression feature of a graphing utility to confirm the result. (If you are unfamiliar with summation notation, look at the discussion in Section 9.1 or in Appendix B at the website for this text at college.hmco.com.)
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