CBSE Class 10 Answered
how to find less than time & more than time in statistics in a grouped data?
Asked by Abhijeet abhijeet | 29 Sep, 2013, 02:42: PM
Expert Answer
Consider the following distribution:
C.I. f
0-10 2
10-20 5
20-30 8
30-40 5
Now, the less than distribution can be obtained as follows:
C.I. (upper limit) f(c.f) = cumulative frequency
Less than 10 2
Less than 20 5+2 = 7
Less than 30 8+5+2 = 15
Less than 40 8+5+2+5 = 20
The more than distribution can be obtained as follows:
C.I. (Lower limit) f(c.f) = cumulative frequency
More than 0 8+5+2+5 = 20
More than 10 20 - 2 = 18
More than 20 18 - 5 = 13
More than 30 13 - 8 = 5
Answered by | 29 Sep, 2013, 11:15: PM
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