Consider the following data x 9 12 12 15 18 18 21 21 27 y 11 12 23 30 29 52 41 30 65 60 72 X x? xy 11 12 (i) Complete th

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Consider The Following Data X 9 12 12 15 18 18 21 21 27 Y 11 12 23 30 29 52 41 30 65 60 72 X X Xy 11 12 I Complete Th 1 (69.61 KiB) Viewed 38 times

Consider the following data x 9 12 12 15 18 18 21 21 27 y 11 12 23 30 29 52 41 30 65 60 72 X x? xy 11 12 (i) Complete the following table y 9 12 12 23 15 30 18 52 21 41 21 65 27 60 30 72 Ex= 29 18 Σv= {x} = Σχy = [Note: round the answer in part (ii) and (iii) to 5 decimal places] (ii) From (i), find the equation of the best fit linear line using the method of least squares. (iii) Estimate the value of y when x = 25.