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      Question

      Which of the following statement is not

      true?
      A Correlation co-efficient is the arithmetic mean between the regression coefficients. Correct Answer Incorrect Answer
      B Regression co-efficient are independent of change of origin but not of scale. Correct Answer Incorrect Answer
      C If r=0, then the lines of regression are perpendicular to each other. Correct Answer Incorrect Answer
      D Both the regression co-efficient and the correlation co-efficient have the same sign. Correct Answer Incorrect Answer

      Solution

      Correlation co-efficient is the geometric mean between the regression coefficients.

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