Solution Found!
By the method of least squares, fit the cubic equation y = 1+2x+3x2+4x3 to the following
Chapter 7, Problem 7.6-9(choose chapter or problem)
QUESTION:
By the method of least squares, fit the cubic equation \(y = \beta_1+\beta_2x+\beta_3x^2+\beta_4x^3\) to the following 10 observed data points (x, y): (0, 1), (–1, –3), (0, 3), (1, 3), (–1, –1), (2, 10), (0, 0), (–2, –9), (–1, –2), (2, 8).
Questions & Answers
QUESTION:
By the method of least squares, fit the cubic equation \(y = \beta_1+\beta_2x+\beta_3x^2+\beta_4x^3\) to the following 10 observed data points (x, y): (0, 1), (–1, –3), (0, 3), (1, 3), (–1, –1), (2, 10), (0, 0), (–2, –9), (–1, –2), (2, 8).
ANSWER:
Step 1 of 6
Normal equations: