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8. Consider the following plot of residuals versus x for a regression analysis. Based on the plot, what problem with the regression model or data

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8. Consider the following plot of residuals versus x for a regression analysis. Based on the plot, what problem with the regression model or data is most noticeable? (A) The variances are not constant. (B) The mean of Y is not a linear function of X. (C) The variance of Y is not constant at each X. (D) There is an outlier in the data

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