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Which of the following plots can help determine whether a linear regression function is appropriate for...

Which of the following plots can help determine whether a linear regression function is appropriate for the data being analyzed? (Select all that apply)

Select one or more:

a. Scatter plot

b. Residual plot against the predictor variable

c. Residual plot against the fitted values

d. Normal probability plot

math   Statistics-And-Probability   
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Answer #1

plots that can help determine whether a linear regression function is appropriate for the data being analyzed-

b. Residual plot against the predictor variable

A residual plot is a graph that shows the residuals on the vertical axis and the independent variable( Predictor variable) on the horizontal axis. If the points in a residual plot are randomly dispersed around the horizontal axis, a linear regression model is appropriate for the data; otherwise, a non-linear model is more appropriate.

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