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Question 2: Suppose that we wish to fit a regression model for which the true regression line passes through the origin (0,0)
Question 3: Consider the data of exercise 12-6 page 508. Drop column 4 (the data related to X4) and assume that y is function
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Q2: (a) Loss function = A= (yi - B.x;)? i=1 On <= -2 as Li=1 liyi (yi - Biri).<; = 0 = 8 = i=1 Hence least square estimate of

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