PROBLEM 1:

+ I got a little confused when i read the word "invest" for Charles Vest investing 100M -- it made me think that he'd invest the money until he starts giving it back.  I don't know if this is a common confusion or not.  If so, can reword to say he wants to set aside 100M to do blah blah.
+ Maybe add a note that it is the year 2002?  
+ seems like a straightforward annuities problem -- though we may get some wrong bounds on this (off by one or something)...


PROBLEM 2:

+ Maybe we should specify that they can leave in terms of Choose, Permutation, or factorial notation
+ Do we need to specify that the two e's are indistinguishable?


PROBLEM 3:

+ notational:  sin(n) instead of sinn as it appears now in the latex
+ solution-wise:  there will be a lot of c/n0 combos that work so it may be a little annoying to grade 


PROBLEM 4:
+ this problem uses independence -- i think many students are under the strict impression that there will be NO independence on the quiz?  Though they may still be able to do it, i can see complaints on this since we said no independence.
+ Part a:  increase, decrease, or stay the same compared to what?  we should probably specify (i.e. compared to if the information about the TA's email was not known).  Again -- seems hard to grade.  Says that it's 8 pts right now -- seems like maybe too much for a question like this?
+ part b:  in the solution space, maybe we should write in the italicized sentences and they can fill in their expression next to it.  Otherwise, may be a waste of their time to copy the three italicized sentences.


PROBLEM 5:
+ I was confused on what part a was asking for.  It made me want to just in, calculate the answer you wanted in part b, and just use the pigeonhole principle to solve the whole problem.  It actually makes more sense to me that way.  You have (99 choose 9) holes and 2^90 pigeons.  Part b is fine.  Just part a got me confused -- when i read the problem i thought pigeonhole but still didn't what exactly how to write up part a without computing part b.


PROBLEM 6:
+ good problem :)  It's great to have this early.  I think it'll force the students to really understand (if not during the quiz, after the quiz) the difference between these different expressions.  
+ maybe a little long?