Suppose the call is changed to: 

result = mean([]) 

Explain why the function cannot complete successfully as written. Describe a suitable way for the function to handle this case, and justify your choice. You do not need to write code. [2 marks] 

The buyer-supplier relationship characterized by simple, routine

exchanges with moderate levels of cooperation and information exchange is

called _____.

One variant of systems selling is _____ where a single supplier provides

the buyer with his or her entire requirement of MRO (maintenance, repair,

operating) supplies.

The last stage in the

industrial buying process is supplier selection.

The demand for business goods and services tends to be more volatile

than the demand for consumer goods and services.

The buyer-supplier relationship characterized by a close cooperative

relationship where the seller adapts to meet the customer's needs without

expecting much adaptation or change on the part of the customer in exchange is

called _____.

_____ cost is the cost per

unit at that level of production.