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    Question

    If rxy = 0.75, then correlation coefficient between u =

    1.5X and v = 2Y is:
    B 0.75 Correct Answer Incorrect Answer
    C -0.75 Correct Answer Incorrect Answer
    D 1.5 Correct Answer Incorrect Answer
    E -1.5 Correct Answer Incorrect Answer

    Solution

    r is not affected by change of scale.

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