What is the predicted life expectancy for a person who lives 3.7 miles away from a grocery store, according to this equation
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In a study, researchers are investigating the link between the distance a person lives from a grocery store (the explanatory variable, in miles) and their life expectancy (the response variable, in years).
From their data, they calculate a least squares regression line
y^= 79.6 - 0.8x
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