Q. 13 4.5( 11 Votes )

The following frequency distribution gives the monthly consumption of electricity of the consumers of a locality. Find the median, mean and mode of the data and compare them.

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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