In a particular month, the electrical usages, rounded to the nearest 100kW h (kilowatt hours), of 1000 homes in a certain city were summarized as follows Find the mean of the electrical usage 500 600 700 800 900 1000 1100 1200 122 90 15 Usage No Homes 22 80 106 185 380

Question: In a particular month, the electrical usages, rounded to the nearest 100kW h (kilowatt-hours), of 1000 homes in a certain city were summarized as

In a particular month, the electrical usages, rounded to the nearest 100kW · h (kilowatt-hours), of 1000 homes in a certain city were summarized as follows:

500 600 700 800 900 1000 1100 1200 122 90 15 Usage

Find the mean of the electrical usage.

500 600 700 800 900 1000 1100 1200 122 90 15 Usage No. Homes 22 80 106 185 380

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