<p>Sorry, this question may seem trivial.</p>
<p>Okay in our Chem class (not AP), we were taught to round in two ways: one was to round up if the next digit was 5 or greater and the other to round it up or down depending on whether the digit after the five was odd or even.</p>
<p>So my question is which way do you round on the AP exam?</p>
<p>"other to round it up or down depending on whether the digit after the five was odd or even." </p>
<p>That confused me. The first method sounds right.</p>
<p>Anyway, on the multiple choice I doubt there'd be 2 answers one apart like that that are specifically designed to test your rounding ability.</p>
<p>Second, on the free response, I doubt they would take off much if at all for incorrectly rounding. Messing up significant digits--yes. Rounding--probably not.</p>
<p>the odd and even thing is correct. we learned that in chemistry class.</p>
<p>but i agree with jruzzys statement that it won't be an issue on the AP</p>
<p>"up or down depending on whether the digit after the five was odd or even"</p>
<p>If I am understanding correctly, this sounds pathetic. So 5.9 would round to 5, and 5.8 to 6? I don't get it.</p>
<p>To start: Normally, a 5 rounds up, as any math class would have taught you.</p>
<p>Okay, but say you're now looking for two sig figs in chemistry class:</p>
<p>If you have 6.75, you round to up to 6.8 (since 8 is even).
Just like math class..</p>
<p>If you have 6.65, you round down to 6.6 (you don't want 7 since it is an odd number).
Not like math class..
(However, if you have 6.651, you will round up to 6.7, as this rule applies only when 5 is the only number immediately determining what way a round goes.) </p>
<p>The AP test requires that you do you roundings of 5 in this manner. I do not remember seeing this kind of rounding on the test or even in class simply because it seems so hard to grasp for a lot of students at first.</p>
<p>This won't be an issue on the AP exam, because the multiple choice answers are far enough apart, and the free response answers are still marked as correct if the last sig fig is off by 1.</p>
<p>The proper way to round is if the number is 5 or higher it rounds up. So,</p>
<p>6.55 rounds to 6.6 while
6.54 rounds to 6.5</p>
<p>Ask any teacher and they will confirm that.</p>
<p>My AP Chem teacher said the AP graders are very lenient on the exam, meaning you can be 1 sig fig off (aka round either way) and still get full credit on the FRQ's. Meanwhile, the MC section might have one or two sig fig questions, but they are very obvious.</p>
<p>its called sig figs!</p>
<p>thanks guys!</p>
<p>I will be taking 5 APs in this school year</p>
<p>AP English
AP Calculus BC
AP Bio
Ap Pyschology
AP World</p>
<p>I am not sure if I can handle it. How did you guys manage to study all APs the same time before the exam?</p>
<p>About 2 or 3 weeks before exams, get a calander and divide the days up by subjects. Spend a whole day on a single subject and you can mix up the days too.</p>
<p>Psychology and World History will probably take 3 full days of studying each. English (I'm assuming Language? will not take any prep if you have good writing/reading/analysing skills). Calculus and Bio will probably be your more "time consuming" ones, so study throughout the year and learn lots on class. I think you can do it, although I don't know about your time spend on ECs etc.</p>
<p>I did AP English Language, AP Calc BC, AP Bio, AP World, and AP Statistics in my junior year.</p>
<p>I agree with the above poster in that Calculus and Biology are the tests which you'll be studying for throughout the year (my teachers did an AMAZING job of preparing us the three-four weeks before the test and of incorporating lots of practice ap problems into every single lesson). They were still a lot of studying up til the night before each exam. Haha.. I was so tired when studying for calculus, when I reviewd the Ratio Test, I read "If limit equals 1, you know nothing." and took it as a personal insult... I knew then it was time to sleep.</p>
<p>ANYWAY. History is by far my worst subject and I was convinced I got a 2 on the exam. It was a lot of studying for me, really intensive. Flashcards, looking over a stack of quizzes (one a day for a whole year adds up) and some charts I made. </p>
<p>AP Language... well the MCs terrified me so I did some practice sections but I knew I was really strong at the essays (consistantly earned 8s and 9s inclass) so i wouldn't have any problem (and I didn't)</p>
<p>Sorry I can't speak for psych!</p>
<p>To be honest, I didn't use sig figs on the AP test. Honestly, I disregard the process and put down 3 digits after the decimal. I got a 4 and I'm content. I don't think sig figs are too important with the grader(My opinion only)</p>