are you given the probability mass function equation in exam

Even if, it isn't, you can use an allowed formulary where it is given.

Check out this YT channel:
https://www.youtube.com/channel/UCottnn2EVnsbKbN1qIGUKuA
It's really helpful for showing how to remember these kinds of things (in terms of Hypothesis Testing ) in 2 Minutes

And if you've understood it, then most likely it should stick and you don't need to worry about looking in the exam booklet

what’s that? :0

It is a book in which all formulas from mathematics and the three natural sciences are in! German students use it for their exams.

I really don’t think you’d be allowed to bring that into an exam????

It will be in the formulae booklet

For the final exams, the German students are really allowed to use it. As you can't believe it, here is a such a German excerpt.



Do British students aren't really allowed to use?!