How does a router handle a packet destined for a network that is not listed in the routing table?

Im doing this last minute and literally none of my neighbors or people that my dad works with use excel so if anyone could me make up an example

4. a1. vince owns a television repair shop that is insured undera commercial package policy. the policy includes thebuilding and personal property coverage form and thecauses-of-loss broad form. the declarations page indicatesthat coverage applies to both the building and the namedinsured's business property. explain whether or not thefollowing losses would be covered under his policy.a. a fire occurs on the premises, and the building isbadly damaged.b. a burglar steals some money and securities from anunlocked safe.c. a business computer is damaged by vandals whobreak into the shop after business hours.d. a tornado touches down near the store. several tel-evision sets of customers in the shop for repair aredamaged in the storm.til

Which statistical function in a spreadsheet you to see how far each number varies, on average, from the average value of the list?