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    Question

    If r is negative, we know that :

    src="https://www.ixambee.com/questionimage/Chapter/1688369402-DEPR-MT-7-12.JPG" alt="" />
    A a Correct Answer Incorrect Answer
    B b Correct Answer Incorrect Answer
    C c Correct Answer Incorrect Answer
    D d Correct Answer Incorrect Answer
    E e Correct Answer Incorrect Answer

    Solution

    Since variance is always non-negative only option 3 can happen.

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