New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The correlation coefficient between X and -X

    is:
    B 0.5 Correct Answer Incorrect Answer
    C 1 Correct Answer Incorrect Answer
    D -1 Correct Answer Incorrect Answer
    E Can’t say Correct Answer Incorrect Answer

    Solution

    The correlation coefficient between X and -X is -1.

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