Q. 44.5( 204 Votes )

The lengths of 40

Answer :

The cumulative frequency of the data can be calculated as:

As per the question,


N= 40



Hence,


Median class =144.5-153.5


Lower limit, l = 144.5


cf = 17


f = 12


h = 9


Now,


Median can be calculated as:




= 144.5 +


= 146.75

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