The residual plot for a data set is shown.
2 answers:
Here are the CORRECT answers.
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Answer:
The regression line is not a good model because the residuals are not randomly distributed.
Step-by-step explanation:
In a regression, the residual is the difference between the observed values and the predicted values.
If the points in a residual plot are randomly dispersed, a linear regression model is appropriate for the data.
In this case, a pattern is present (the plot is similar to a sine plot); this suggest that a non-linear regression would be better.
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