[Butterfly1527]

Okay so the exam's tomorrow afternoon, and I am trying to revise at the moment, and am looking at past papers and stuff and there are sometimes questions about statistical models- what they are and advantages/ disadvantags of them.

I can't find a good definition for this in our text book, all it says that it's distinguishable from a mathematical model in that it involves areas of uncertainty, and I was wondering if anyone else knew a better definition? And their advantages and disadvantages?

[Syzygy7]

Check all their mark schemes which can be found here:

http://www.edexcel.com/quals/gce/gce...s/default.aspx

[tgr141291]

Is it actually in the spec because those questions only seem to cum up on the old past papers and not the recent ones

[Butterfly1527]

oh right, kay thanks!