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    Question

    The mean and median of 100 observations are 50 and 52

    respectively, the value of the largest item is 100. Later it was found out that the value 110 was misread as 100. The new corrected mean and median will be?
    A 50.5 and 50 respectively Correct Answer Incorrect Answer
    B 50 and 50 respectively Correct Answer Incorrect Answer
    C 50.1 and 52 respectively Correct Answer Incorrect Answer
    D 50.5 and 50.5 respectively Correct Answer Incorrect Answer
    E 50.1 and 50.1 respectively Correct Answer Incorrect Answer

    Solution

    Mean = 50 Median = 52 N = 100 EX = 5000 EXc = 5000-100+110 = 5010 Correct Mean = 5010 / 100 = 50.1 Value of median will not change as it is positional average.

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