describe data: We have included corresponding values for all rows in the table. It is interesting that "Weekly_Sales" takes a negative value in the minimum. The maximum value is 693,099, which is quite high. The "Store" value ranks from 1 to 45, so this will be the "store number" specification, since we already know that there are 45 stores. The "Dept" value ranks from 1 to 99, so I'm guessing that this is the name of the department within the stores, and thus there are 99 different departments. December 23rd seems to be a high frequency day.