Part C: Limitations/Assumptions of the Model
When is the model appropriate?
When does the model break down?
Appropriate domain/range?
Interpolation is more reliable than extrapolation
You never need to bring in outside knowledge unless it is very obvious.
Logic you don't need to use unless they explicitly tell you the info:
"Video games get less popular because people get tired of playing the same game and want a new one"
"4 tons is heavier than a typical car"
"People are recycling more, so there should be less trash produced"
Logic you might need:
"The weight of an elephant cannot be negative"
"The total number of bikes sold can only increase, never decrease"