Question: What pattern will be revealed in a residual plot when there (a) are no apparent problems? (b) is a violation of the constant variation assumption?

What pattern will be revealed in a residual plot when there

(a) are no apparent problems?

(b) is a violation of the constant variation assumption?

(c) is a violation of the linearity assumption?

(d) is one or more bivariate outliers in the observed data?

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