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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

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

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter3: Straight Lines And Linear Functions
Section3.CR: Chapter Review Exercises
Problem 15CR: Life Expectancy The following table shows the average life expectancy, in years, of a child born in...
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The data given below are the ages at inauguration and of death for some presidents of the United States. Use the technology of your choice to complete parts (a) through (d). Click the icon to view the data. 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 the data, so it is to carry out a linear regression. 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. 2= (Round to three decimal places as needed.) OB. It is not appropriate to carry out a linear regression. 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. OA. About % of the variation in age at inauguration is explained by age at death. (Round to one decimal place as needed.) 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. Question Viewer OA. Moderately useful OB. Very useful OC. Not useful OD. It is not reasonable to carry out a linear regression.
Transcribed Image Text:The data given below are the ages at inauguration and of death for some presidents of the United States. Use the technology of your choice to complete parts (a) through (d). Click the icon to view the data. 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 the data, so it is to carry out a linear regression. 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. 2= (Round to three decimal places as needed.) OB. It is not appropriate to carry out a linear regression. 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. OA. About % of the variation in age at inauguration is explained by age at death. (Round to one decimal place as needed.) 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. Question Viewer OA. Moderately useful OB. Very useful OC. Not useful OD. It is not reasonable to carry out a linear regression.
a re gre t of decim ate to tage your he var decima the var decima priate to Inauguration and Death Inauguration 57 57 57 58 57 61 54 51 52 46 54 47 55 55 42 51 56 55 62 69 Death 67 83 85 7万 80 78 79 F 56 63 70 71 71 60 72 7 7 78 93 73 71 67 67 57
Transcribed Image Text:a re gre t of decim ate to tage your he var decima the var decima priate to Inauguration and Death Inauguration 57 57 57 58 57 61 54 51 52 46 54 47 55 55 42 51 56 55 62 69 Death 67 83 85 7万 80 78 79 F 56 63 70 71 71 60 72 7 7 78 93 73 71 67 67 57
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