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    Question

    Find the median of the following observations: 7, 8,

    5, 4, 6, 10, 9, 12, 11, 13
    A 9.5 Correct Answer Incorrect Answer
    B 8.5 Correct Answer Incorrect Answer
    C 7 Correct Answer Incorrect Answer
    D 6 Correct Answer Incorrect Answer

    Solution

    Ascending order of observations: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
    Number of observations = 10 (even number).
    Median formula for even observations:
    Median = [(n/2)th term + (n/2 + 1)th term] / 2
    For n = 10, the 5th and 6th terms are 8 and 9.
    Median = (8 + 9) / 2 = 8.5

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