Directions: Select the best possible answer from the choices A-D.
Guessing will not (on average) reduce your score, but if you have no idea
how to work a problem, leave it blank and I'll give you the expected ¼
point. The "not sure" buttons will not affect your grade-- they simply allow you
to mark areas that may require further study. You can select how much help to
get in the grade report by selecting different values of the SHOW
variable. (The larger the value of SHOW the more help is given on grading.