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    Question

    The standard deviation of Y is double of standard

    deviation of X. The correlation coefficient between X and Y is 0.5. The acme angle between lines of regression is
    A Arctan (4/5) Correct Answer Incorrect Answer
    B Arctan (3/5) Correct Answer Incorrect Answer
    C Arctan (1/5) Correct Answer Incorrect Answer
    D Arctan (2/5) Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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