Q. 114.0( 10 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 = 50
N/2 = 50/2 = 25
Observe, cf = 26 is just greater than 25.
Thus, median class = 15 – 20
Median is given by
L = Lower class limit of median class = 15
N/2 = 25
cf = cumulative frequency of the class preceding median class = 11
f = frequency of the median class = 15
h = class interval of the median class = 5
Substituting these values in the formula of median, we get
⇒ Median = 15 + 9.33
⇒ Median = 24.33
Thus, the median of data is 24.33.
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