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In a mathematics test given to …

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In a mathematics test given to 15 students the following marks (out of 100)are recorded:41, 39,48,52,46,62,54,40,96,52,98,40,42,52,60 find the mean median and mode of this data

    • Posted by Alisha Taneja 5 years, 2 months ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Yogita Ingle 5 years, 2 months ago

    1) Mean = sum of all observation/ Total number of observation
    Total Students = 15
    Value of observation= 41, 39, 48, 52, 46, 62, 54, 40, 96, 52, 98, 40, 42, 52, 60
    Mean =


    Median:
    1) Arrange data in ascending order
    39,40,40,41,42,46,48,52,52,52,54,60,62,96,98
    2) Total numbers of observation= 15
    Odd: (n+1)/2
    =(15+1)/2 = 8 th element is median
    Median = 52
    Mode:
    1) Arrange data in ascending order
    39,40,40,41,42,46,48,52,52,52,54,60,62,96,98
    2) Count the frequency of each observation,the observation having most frequency is the mode
    So, 52 appears 3 time,maximum time
    Mode = 52

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