Question

    The arithmetic means of the following data is.23,17,20,19,21,20,20

    A 25 Correct Answer Incorrect Answer
    B 22 Correct Answer Incorrect Answer
    C 20 Correct Answer Incorrect Answer
    D 30 Correct Answer Incorrect Answer

    Solution

    arithmetic mean = sum of total numbers /total number   = (23+17+20+19+21+20+20) / 7 =140/7 arithmetic mean =20

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