8.4 due on 12/7

Difficult
There's not much new material in this section since the few theorems we are given are just special cases of change of variables (section 8.2). Although, this section has shown me that I still need to practice finding marginals. But other than that, the only part I had trouble with was the bivariate normal distribution example. I know the problem is mostly book-keeping, but I found it tricky manipulating the equation so that the answer comes out nice.
Reflective
Overall, this section wasn't very difficult. The special equations are nice to know in order to save time, but it's not that much harder to work it on your own. Although, it really helped to see more examples on these types of problems. It cleared up a few issues I was having earlier in section 8.2.