Runs scored by a batsman in l0 innings are: 38,70,48, 34, 42, 55, 63, 46, 54, 44 The mean deviation is

 Runs scored by a batsman in l0 innings are: 38,70,48, 34, 42, 55, 63, 46, 54, 44 The mean deviation is

  1. A

    8.6

  2. B

    6.4

  3. C

    10.6

  4. D

    9.6

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    Solution:

    Arranging the given data in ascending order, we have 34,38, 42,44, 46, 48, 54, 55, 63,70, 
    median, M=46+482=47 (n=10, median is the mean of 5th and 6th items)
     mean deviation =ΣxiMn
    =Σxi4710=13+9+5+3+1+1+7+8+16+2310=8.6

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