Answer :


total number of households = 35


the median is the usage of 18th household.


which lies between 110-120 and in this range there are 8 households.


let’s assume a uniform distribution.


i.e., 14th household’s usage is 110 and 15th household’s usage is 110 +


=


usage of 18th household =


usage of 18th household = 115


115 is the median value


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