The data from Exercise 4.65 for the ages at inauguration and of death for the presidents of
Question:
a. Decide whether finding a regression line for the data is reasonable. If so, then also do parts (b)–(d).
b. Obtain the coefficient of determination.
c. Determine the percentage of variation in the observed values of the response variable explained by the regression, and interpret your answer.
d. State how useful the regression equation appears to be for making predictions.
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a In Exercise 465 we saw from the scatterplot that find...View the full answer
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