Find slope of the regression line, Basic Statistics

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Find slope of the regression line

Lean body mass (your weight leaving out fat) helps predict metabolic rate (how many calories of energy you burn in an hour). The relationship is roughly a straight line. The least-squares regression line for predicting metabolic rate (y in calories) from lean body mass (x in kilograms) is y = 113.2 + 26.9x.

The slope of the regression line is

A. 113.2-that is, the mean metabolic rate is 113.2 calories per hour.
B. 26.9-that is, the mean metabolic rate is 26.9 calories per hour.
C. 26.9-that is, when a person weighs 26.9 more kg, metabolic rate goes up by 1 calorie.
D. 26.9-that is, when lean body mass goes up by 1 kg, metabolic rate goes up by 26.9 calories.
E. 113.2-that is, when x = 0, y = 113.2.

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Basic Statistics: Find slope of the regression line

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Basic Statistics: Find slope of the regression line

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