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The marks obtained by 40 students of cla...

The marks obtained by 40 students of class VIII in an examination are given below: 16,17,18,3,7,23,18,13,10,21,7,1,13,21,13,15,19,24,16,3, 23,5,12,18,8,12,6,8,16,5,3,5,0,7,9,12,20,10,2,23 Divide the data into five groups, namely 0-5, 5-10, 10-15, 15-20 and 20-25 and prepare a grouped frequency table.

Text Solution

Verified by Experts

first, arranging the given data in ascending order.
4,5,7,7,13,14,15,16,17,17,19,24,25,26,27,28,30,31,31,34,34,35,35,36,36,42,44,45,47,48,51,52,52,54,55,55,56,56,61,62,62,63,68,70,72,74,75,75,78,80,81,85,86,86,92,95,97.
We arrange the given data into groups like 0-9, 10-19, 20-29,..... The class width in each case is 10.
The frequency distribution of the given data is given below
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The marks obtained by 40 students of class VIII in an examination are given below: 18,8,12,0,8,16,12,5,23,2,16,23,2,10,20,12,9,7,6,5,3,5, 13,21,13,15,20,24,1,7,21,16,13,18,23,7,3,18,17,16 Present the data in the form of a frequency distribution using the same class size, one such class being 15-20 (where 20 is not included).

The marks obtained by 40 students of class IX in an examination are given below: 18, 8, 12, 6, 8, 16, 12, 5, 23, 2, 16, 23, 2, 10, 20, 12, 9, 7, 6, 5, 3, 5, 13, 21, 13, 15, 20, 24, 1, 7, 21, 16, 13, 18, 23, 7, 3, 18, 17, 16 Present the data in the form of a frequency distribution using the same class size, one such class being 15-20 (where 20 is not included)

Knowledge Check

  • . Find the median of the given data: 9, 7, 12, 16, 8, 11, 16, 13, 10

    A
    `12`
    B
    `11`
    C
    `16`
    D
    `13`

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