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Seventeen different hot dog brands were measured for sodium content (mg) and the number of calories in each hot dog. A least-squares regression equation of the data is:
Sodium = -91.2 + 3.2*Calories
Which is correct about the least-squares regression line?
-It minimizes the sum of the vertical squared deviations between the observed sodium levels and the sodium levels predicted by the line.
-It minimizes the sum of the horizontal squared deviations between the calories in the hot dogs and calories predicted by the line.
-It minimizes the sum of the horizontal squared deviations between the observed sodium levels and calories predicted by the line.
-It minimizes the sum of the vertical squared deviations between the observed calories in the hot dogs and calories predicted by the line.
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