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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

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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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