Quote:
Originally Posted by k_sze
Will I need to summon notions such as "moment generating function" for part (c) of this problem?

So I
did end up using moment generating function. And I think the answer to (c) is
, using calculus.
But now I'm stuck at (d).
Directly substituting
is probably wrong? Because
can be simplified to the point where no logarithm appears (unless I made a really big mistake).