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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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