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    Question

    The grouped data for the observations are

    >Class:                     1-3          3-5          5-7 Frequency:         2              1              2              The population skewness
    A cannot be computed Correct Answer Incorrect Answer
    B is zero Correct Answer Incorrect Answer
    C is positive Correct Answer Incorrect Answer
    D is negative Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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