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The Cheyenne Hotel in Big Sky$,$ Montana, has accumulated records of the total electrical costs of the hotel and the number of occupancy$-$days over the last year. An occupancy$-$day represents a room rented for one day. The hotel's business is highly seasonal, with peaks occurring during the ski season and in the summer.

$\backslash$table$[[$Month$,\backslash$table$[[$Occupancy$],[$Days$]],\backslash$table$[[$Electrical$],[$Costs$]]],[$January$,3,180,$$$6,510$