Question: Considering the example in Section 15.2.2, which is correct and most complete? a. X'X = 5 25 25 135 b. Best is a 2 x

Considering the example in Section 15.2.2, which is correct and most complete?a. X'X = 5 25 25 135 b. Best is a 2

a. X'X = 5 25 25 135 b. Best is a 2 x 2 matrix. c. Best [22 34]' minimizes the sum of squares error. d. An optimization solver could not be used to derive least squares estimates. e. All of the above are correct. f. All of the above are correct except (a) and (d).

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