Edexcel S1 January 2007
Question Number 6 - Worked Solution
a)
- Used to simplify or represent a real world problem
- Cheaper or quicker or easier (than the real situation) or more easily modified
- To improve understanding of the real world problem
- Used to predict outcomes from a real world problem
b)
- (step 3 or 4) Model used to make predictions.
- (step 4 or 3) (Experimental) data collected
- (step 7) Model is refined