Q. 134.6( 15 Votes )

The following fre

Answer :



Mean= =


We have, N= 68,


N/2 = 34


Hence, medium class =125- 145, such that


l=125, f’=20, f=22, h=20


Median = l +


Here, we may observe that maximum class frequency is 20 belonging to the class interval 125-145


So, modal class= 125-145


Lower limit, l= 125


f0=13, f2=14, f=20,h = 20



=


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