# <span lang="EN-US

For median:

We have, total frequency, N = 30

N/2 = 30/2 = 15

Observe, cf = 19 is just greater than 15.

Thus, median class = 55-60

Median is given by

Where,

L = Lower class limit of median class = 55

N/2 = 15

cf = cumulative frequency of the class preceding median class = 13

f = frequency of the median class = 6

h = class interval of the median class = 5

Substituting these values in the formula of median, we get

Median = 55 + 1.67

Median = 56.67

Thus, the median is 56.67 kg.

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