The following table shows students' test scores on the first two tests in an introductory chemistry class. Chemistry Test Scores Copy Data First 84 57 95 82 67 41 83 40 77 82 67 41 83 40 84 4 77 50 test, x Second test, y 57 53 62 89 74 59 34 61 33 62 66 60 43 Step 1 of 2: Find an equation of the least-squares regression line. Round your answer to three decimal places, if necessary. Answer