Q. 173.7( 3 Votes )

The lengths of 40

Answer :

: The given data is not having continuous class intervals. So, we have to add and subtract 0.5 to upper class limit and lower class limit.

Median class = 144.5-153.5


l = 144.5, h = 9, f = 12 and F = 17


Median = l + * h


= 144.5 + ( * 9


= 144.5 +


= 146.75


So, median length is 146.75 mm.


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