The data below represent the number of days absent, x, and the final grade, y, for a sample of college students at a large university. Complete parts (a) through (e) below. No. of absences, x 5 6 7 0 1 2 3 4 8 9 87.7 84.8 81.9 79.4 76.4 72.0 62.0 66.9 64.0 61.1 Final grade, y ← (a) Find the least-squares regression line treating the number of absences, x, as the explanatory variable and the final grade, y, as the response variable. (Round to three decimal places as needed.)

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