Mastering R-Squared
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Questions and Answers

Which formula is used to calculate the r-squared value?

  • Pearson correlation coefficient
  • Coefficient of determination (correct)
  • Mean absolute error
  • Standard deviation

    • What is the range of possible values for r-squared?

  • 0 to infinity
  • -1 to 1
  • 0 to 1 (correct)
  • 1 to infinity

    • What does a high r-squared value indicate?

  • A non-linear relationship
  • A strong positive linear relationship (correct)
  • A strong negative linear relationship
  • No linear relationship

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