366 Chapter 9 Data Management Layer Design class diagram? After going through the work of normalizing, why would this be considered? 2. In the new system under development for Holiday w Travel Vehicles, seven tables will be implemented in the new relational database. These tables are: New Ce as Vehicle, Trade-in Vehicle, Sales Invoice, Customer, P Salesperson, Installed Option, and Option. The expected average record size for these tables and the initial record count per table are given here. 3. F Initial Table Size (records) 10,000 7,500 16,000 13,000 Average Record Size 65 characters Table Name New Vehicle Trade-in Vehicle48 characters Sales Invoice Customer Salespersorn Installed Option 16 characters Option 76 characters 61 characters 34 characters 100 25,000 28 characters 500