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As we saw, the correlation coefficient is the answer to the question: to what degree does this data lie on a straight line? Possible answers range from −1, meaning “lying exactly on some straight line of negative slope” to 0, meaning “no straight line at all” to +1, meaning “lying exactly on some straight line of positive slope”.

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Regression

  • 章节

  • 发表日期：

    2026年

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  • Alan Garfinkel,
  • Yina Guo

摘要

As we saw, the correlation coefficient is the answer to the question: to what degree does this data lie on a straight line? Possible answers range from −1, meaning “lying exactly on some straight line of negative slope” to 0, meaning “no straight line at all” to +1, meaning “lying exactly on some straight line of positive slope”.