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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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