Question

8. Residual candy Data were collected on a sample of 12 brands of movie candy. The scatterplot shows the relationship between x = amount of sugar (in grams) and y = number of calories, along with the least-squares regression line. The standard deviation of the residuals for this model is s = 105.5. Interpret this value.

Answer 1

We must interpret the standard deviation of this linear regression.

The standard deviation represents the average distance that the observed values fall from the regression line. In this case, the average distance between scatter points and the regression line is s = 105.5 g.