Q. 95.0( 1 Vote )

Answer :

We may observe that the given data be maximum class frequency is 40 belonging to 1500- 2000 intervals

So, modal class = 1500- 2000

l=1500, f=40, f_{0}=24, f_{2}=33, h=50

=

=1500 + 347.826

=1847.826

So, modal class monthly expenditure was Rs. 1847.83

We may compute class marks (x_{i}) as per the relation:

X_{i}=

h= 500, A=2750

∑x_{i}=200,

(x̅) mean =

(x̅) =

=2750-87.5

=2662.5

So, mean monthly expenditure was Rs. 2662.50

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