QuestionQ28

Data science concepts

When performing a regression, how do the points in a null residual plot form around the identity line?

  • A An increasing width band
  • B A decreasing width band
  • C A constant width band
  • D A non-constant width band
Explanation

A null residual plot has residuals with roughly equal spread across the range of fitted values, producing a constant-width band around the reference line.

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