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    Question

    Which of the following could be the valid value(s) of

    the correlation coefficient between two variables? (A) -1 (B) +1 (C) -2 (D) +2 Choose the correct answer from the options given below
    A (A) only Correct Answer Incorrect Answer
    B (A) and (B) both. Correct Answer Incorrect Answer
    C (A), (B), (C) and (D) Correct Answer Incorrect Answer
    D (B) only Correct Answer Incorrect Answer

    Solution

    The correlation coefficient, which measures the strength and direction of a linear relationship between two variables, ranges from -1 to +1. -1 indicates a perfect negative linear correlation, +1 indicates a perfect positive linear correlation, and 0 indicates no linear correlation. Values outside this range, such as -2 or +2, are not possible.

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