Consider the following plot of residuals versus x for a regression analysis.

Based on this residual plot, what problem with the regression model or data is most noticeable?

Question

Consider the following plot of residuals versus x for a regression analysis. 
  
 Based on this residual plot, what problem with the regression model or data is most noticeable?

Answer

The variance of Y is not constant at each X.

Answer

There is an outlier in the data.

Answer

The mean of Y is not a linear function of X.

Answer

The variances are not constant.

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Consider the following plot of residuals versus x for a regression analysis. ...

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