3.1.3.4 Revised Definition

The answer is it depends on the purpose of the model. For the BBC,
the first model was the best because they were producing a television show
and interested in entertainment rather than fairness. If this was an exam
question in this course, I would award least marks to the first model as
it is very simplistic

I thus define a Mathematical Model as

"A simplified representation of reality defined for a particular purpose"