Q. 104.1( 18 Votes )
Let us find the m
To find median of data, we need to make a table calculating cumulative frequency.
We have, total frequency, N = 59
N/2 = 59/2 = 29.5
Observe, cf = 36 is just greater than 29.5.
Thus, median class = 30 – 40
Median is given by
L = Lower class limit of median class = 30
N/2 = 29.5
cf = cumulative frequency of the class preceding median class = 21
f = frequency of the median class = 15
h = class interval of the median class = 10
Substituting these values in the formula of median, we get
⇒ Median = 30 + 5.67
⇒ Median = 35.67
Thus, the median of data is 35.67.
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