***EXAM RULES*** This exam is closed book, closed notes. NO CELLPHONE IS ALLOWED; YOU CAN USE ONLY THE CALCULATOR. NO TALKING, NO LOOKING IN THE DIRECTION OF OTHER PEOPLE'S EXAM. THE FIRST TIME YOU BREAK ANY OF THESE RULES, YOU WILL RECEIVE A PUBLIC WARNING. ON THE SECOND TIME YOUR EXAM WILL BE TAKEN AWAY; this is no empty threat, I have taken exams away in the past. If you have to ask something to a classmate (e.g., some water, a tissue), you first rise your hand and tell the instructor that you have to do so. These rules generalize to any other disruption of the test objectivity that is not explicitly mentioned here. A WRONG ANSWER DOES NOT REDUCE YOUR GRADE. Wrong answers simply count as a 0; thus, if you are not sure about what to answer, just pick one of the answers: do not be tempted to break any of the above rules.