From the following data of the height of 100 workers in a factory, determine the Modal height
by using grouping method:
Height (inch): 58 60 61 62 63 64 65 66 68 70
No. of workers:
6 5 10 20 22 24 6 2 1
13.
4
TAng Modal baby
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Answer:
First of all, we need to arrange the data in an ascending order. Thus, the data is presented below as:
15, 35, 43, 46, 48, 49, 50, 55
N = 8
Since the number of items in the series is even, thus the following formula is used to calculate the median.
Median=Size of (N2)th item + Size of (N2+1)th item2 =Size of (82)th item + Size of (82+1)th item2 =Size of 4th item + Size of 5th item2 = 46+482=47
Thus, Median is 47.
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