First few weeks are probability revision, but once moment generating functions are introduced everything goes downhill from there. Enter the Central Limit Theorem, Cramer Rao Lower Bound,, the Neymann-Pearson Lemma and a whole host of terrifying assortment of mathematical ideas and formulae. Very interesting if you're a masochist, but not for the faint of heart. Don Poskitt, the lecturer during my time while sometimes entertaining tended to fly through the mathematics leaving most students (including myself) scratching our heads in confusion. The exam was horrendous, I honestly wasn't sure if I had scraped a pass yet still somehow got a 93 in the end due to scaling. It makes me wonder how much worse the others had it...