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Regression analysis is being used to fine the line of best fit (y = a + bx) from eleven pairs of data. The calculations have produced the following information: Sx = 440, Sy = 330, Sx2 = 17,986, Sy2 = 10,366 and Sxy = 13,467 What is the value of 'a' in the equation for the line of best fit (to 2 decimal places)? A. 0.63 B. 5.33 C. 0.69 D. 2.33 |