a. Decide whether finding a regression line for the data is reasonable. If so, then also do parts (b) through (d). For the purposes of this regression, let Inauguration be the explanatory variable (x) and let Death be the response variable (y). to carry out a linear regression. to the data, so it is b. Compute the coefficient of determination, 2. Select the correct choice below and, if necessary, fill in the answer box within your choice. There is OA. 7= (Round to three decimal places as needed.) OB. It is not appropriate to carry out a linear regression. OA. About % of the variation in age at inauguration is explained by age at death. (Round to one decimal place as needed.) CHI c. Determine the percentage of variation in the observed values of the response variable explained by the regression, and interpret your answer. Select the correct choice below and, if necessary, fill in the answer box within your choice. OB. About % of the variation in age at death is explained by age at inauguration. (Round to one decimal place as needed.) OC. It is not appropriate to carry out a linear regression. d. State how useful the regression equation appears to be for making predictions. O A. Moderately useful OB. Very useful OC. Not useful OD. It is not reasonable to carry out a linear regression. Question Viewer