Assessing the goodness of fit of a regression line involves considering different information, and no single characteristic of data is sufficient for a good assessment. Consider the characteristics below. How does each contribute to an assessment of fit? That is, for each piece of information, what about it would indicate a "good" best-fit line?
a) The shape of the scatter plot
b) The correlation coefficient
c) The standard deviation of the residuals
d) The coefficient of determination

Question

Assessing the goodness of fit of a regression line involves considering different information, and no single characteristic of data is sufficient for a good assessment. Consider the characteristics below. How does each contribute to an assessment of fit? That is, for each piece of information, what about it would indicate a "good" best-fit line? 
a) The shape of the scatter plot 
b) The correlation coefficient 
c) The standard deviation of the residuals 
d) The coefficient of determination

Quizplus · Accepted Answer

The Answer of Assessing the goodness of fit of a regression line involves considering different information, and no single characteristic of data is sufficient for a good assessment. Consider the characteristics below. How does each contribute to an assessment of fit? That is, for each piece of information, what about it would indicate a "good" best-fit line? 
a) The shape of the scatter plot 
b) The correlation coefficient 
c) The standard deviation of the residuals 
d) The coefficient of determination

Assessing the Goodness of Fit of a Regression Line Involves