Bivariate data obtained for the paired variables x and y are shown below, In the table labeled "Sample data." These data are plotted in the scatter plot in Figure 1, which also displays the least-squares regression line for the data. The equation for this line is y = 4.17 +0.85x. In the "Calculations" table are calculations involving the observed y-values, the mean y of these values, and the values y predicted from the regression equation. Sample data Calculations y-y) 22.5 24.0 6.3504 10.4006 24.3 0.4970 23.4 9.7344 26.2 2.8730 2.0306 27.9 1.9044 0.0064 2.1316 28.5 26.1 0.1764 3.5156 5.2670 30.4 31.2 21.9024 12,1801 1.4161 Send data to Excel Column sum: Column sum: Column sum: 40.0680 28.9758 11.3424 Figure 1 Answer the following. (a) The total variation in the sample y-values is given by the (Choose one) V, which for these data is X (Choose one) U.49 /U first pull down 24.3 23.4 9.7344 2.8730 2.0306 box on both a 26.2 27.9 1.9044 0.0064 2.1316 and c choose 28.5 26.1 24- 0.1764 3.5156 5.2670 from: total sum 30.4 31.2 22- 21.9024 12.1801 1.4161 of squares, Send data to Excel Column sum: Column sum: Column sum: regression sum 40.0680 28.9758 11.3424 Figure 1 or error sum of Answer the following squares The total variation in the sample y-values is given by the (Choose one) V, which for these data is X (Choose one) second pull down box (b) The proportion of the total variation in the sample y-values that can be explained by the estimated linear relationship between x and y is . (Round your answer to at least 2 decimal places.) on both a and c choose from: (c) The least-squares regression line given above is said to be a line which "best fits" the sample data. The term "best 11.3424, 40.0680 or fits" is used because the line has an equation that minimizes the (Choose one) which for these 28.9758 data is (Choose one) - Pic Stitch