CBSE Class 9 Answered
A grouped frequency distribution table with classes of equal sizes using 63-72
(72 included) as one of the class is constructed for the following data :
30, 32, 45, 54, 74, 78, 108, 112, 66, 76, 88,
40, 14, 20, 15, 35, 44, 66, 75, 84, 95, 96,
102, 110, 88, 74, 112, 14, 34, 44.
What will be the number of classes in the distribution?
Asked by Mayank Gupta | 18 Jun, 2011, 04:44: PM
Expert Answer
The given frequency is vary from 14 to 112.
So the class intervals are:
13-22, 23-32, 33-42, 43-52, 53-62, 63-72, 73-82, 83-92, 93-102, 103-112.
Number of class interval = 10.
Answered by | 20 Jun, 2011, 03:46: PM
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