The following table shows students' test scores on the first two tests in an introductory calculus class. Calculus Test Scores First 68 79 69 67 54 84 45 86 70 55 75 70 test, x Second 66 65 70 55 45 67 50 74 65 45 65 58 test, y Copy Data Step 1 of 2: Find an equation of the least-squares regression line. Round your answer to three decimal places, if necessary. Answer 国 Tables Keyboard S

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