CT3 probability distribution formulae

Are the Formulae and tables provided by Actuarial society (the blue book) allowed in exams? Or do we have to learn all the probabiltity distributions (PGF, MGF, DF)?

Or do they provide with tables and formulae?

 

Are you talking about the Institute/Faculty exams, since I never heard of a blue book?
If so, you're given the yellow (some say orange or gold) tables in the exam. If it's not in there and you need it, you are expected to have learnt it.

 

But the core CT3 material says you need not memorize the formulae as they are present in the tables and you should only be able to apply them in the exam with the help of the tables.

 

thats right, u dont need to memorise the formula. i think what it means is that you can use whatever formulas are in the orange book without justification. For example if you were asked to show (for eg) if X is ~Pn and Y is ~ Pn then you could do this by using the MGF without proof that X+Y is poisson also.

If the formula is not mentioned in chapter 4 then you do not need to be able to recognise it, for example you do not need to be familiar with the Skellam distribution, but if the question defined this distribution and asked you derrive E(X) then you would be expected to do so.