Respondents may not be able to respond because they are unable to articulate a response, they may not be informed, or they may not remember

Expert systems work by applying a set of AND/OR rules against a knowledge base, both of which are extracted from human experts

Indicate whether the statement is true or false

When comparing the advantages of trucks and rail as modes of transportation, a key advantage of trucks is that they _____, while an advantage of railroads is that they _____

a. are less costly; offer the greatest flexibility in handling b. offer faster and more frequent shipments; offer lower shipping costs c. offer more flexibility in handling; offer greater dependability d. are the fastest mode of transportation; are the most readily available mode of transportation