Strong and Weak Residual Plots

After performing analyses on a set of data, Mrs. Schoeneck examined the scatter plot of the residual values for each analysis. Which scatter plot indicated the best linear fit for the data?

• A

• B

• C

Shown is a residual plot. How many negative residuals are there?

• 5

• 1

• 3

• 9

• This residual plot indicates a good model.

• This residual plot indicates a poor model.

Shown is a residual plot. How many positive residuals are there?

• 5

• 1

• 3

• 9

Shown is a residual plot. Would a linear regression model of the data be most appropriate?

• YES

• NO

Select all the negative residuals

• This residual graph represents a linear fit.
• This graph represents a nonlinear fit.
• This residual graph represents no fit.

A difference between an actual y-value and a predicted

y-value

• Interpolation

• Extrapolation

• Correlations Coefficient

• Residual

3)

• A

• B

• C

• D

Shown is a residual plot. Would a linear regression model of the data be most appropriate?

• YES

• NO