<p>Couldn’t the moderator remove all of the comments referring to the questions that deemed inappropriate?</p>
<p>Sorry, got a little carried away with the AP stats questions 
Is there any way for me to remove a post, or do I have to request a moderator?</p>
<p>You might as well just bank on a revoked score now…jk, nothing’s going to happen. Much worse has been done than in this thread and nothing has happened. You guys are fine with the vague discussions, hell, some of the threads I’ve seen have specifically talked up almost every MC question.</p>
<p>Yeah minutes after the AP calc exam it was ripped apart on this site. Plus college board doesn’t care as much about people talking about free response because they’re going to post them tomorrow anyways. It’s the multiple choice that’s the biggy (which they try to make the proctor stress) when they’re determining how to make the curve for AP exams they reuse a few multiple choices of different difficulties so that they can tell how much of the difference in scores each year come from ability vs the actual difficulty of the test. </p>
<p>With that said haha</p>
<p>What do all of you mean by you had to scale #6? Sorry if this sounds like a stupid question I thought I did pretty well and that it wasn’t difficult. For the guys Standard deviation I got something just above .4 and for hers I got something around 1.9. If anyone could tell me what they did it would be appreciated</p>
<p>"During score-setting sessions (there is one for each AP Exam) composite scores are translated into AP scores by setting boundaries for each score based on a statistical technique called equating.</p>
<p>Equating relates an AP Exam from one year to an AP Exam from another year so that performance on the two exams can be compared. This is accomplished by looking at how well AP students performed on a set of multiple-choice questions that is common to both exams. These particular multiple-choice questions cover the curriculum content and represent a broad range of difficulty; they can therefore provide information about the ability level of the current group of students and indicate the current exam’s level of difficulty. This same set of questions may show up on next year’s AP Exam and the one after that too. That’s why you aren’t supposed to talk about or share the multiple-choice questions from the AP Exam with anyone; it’s all because of equating!"</p>
<p>[AP:</a> The Score-Setting Process](<a href=“College Board - SAT, AP, College Search and Admission Tools”>About AP Scores – AP Students | College Board)</p>
<p>But as people said before it nothing ever actually happens and you have nothing to worry about. It’s like how they say you can’t talk about anything within 48 hours of the exam but the first thing your class is going to do is run to your teacher and tell her exactly which questions were on the exam that you went over in class the day before</p>
<p>john: peter’s SD was .413 and rania’s SD was 0.14 (i belive, this hasnt been confirmed)
but her SD HAS to be lower than peter’s or else it doesn’t make sense. the last part d) even says “why do you think rania’s SD is lower than peter’s?”
they gave it away</p>
<p>Okay that sounds about like what I got I just used basic rules for adding and multiplying standard deviations to find those. I was just confused by what everyone is saying with scaling and was afraid they were talking about earlier parts of the problem, for that part D I just wrote about how the data from both of her graphs were relatively symmetric and mounded with low variability from the mean and their centers weren’t far apart therefore once they were added together they should still not have a high standard deviation. Peter on the other hand had a sample with a lot of varying results and had two points (at 17 I believe) that were the exact value of Q3+1.5(IQR) and I wasn’t sure if being that value or not made them outliers but I stated that they were for the sake of the problem then mentioned that standard deviation isn’t resistant to outliers. So I’m assuming everyone else actually went through the process of multiplying all of rania’s female results by .6 and all her males by .4 and making a new dotplot to compare or something along those lines?</p>
<p>So if I said for part D that it was because “the sample was stratefied” that would have been completely wrong? I had no idea on that one…</p>
<p>Yeah for those of you worried about getting in trouble for discussing FRQs you shouldn’t be. I don’t discuss FRQs until they’re releases or discuss MC questions, but that’s just because I’m paranoid. If you look at other threads, like the AP Psych one, they’re littered with people discussing MC questions, and nothing’s done to them. I still abide by the rules though just to play it safe.</p>
<p>I figured on #6 that the last question was referring to Rania’s SD for men and the separate SD for women…not the combined. The SDs for the separate groups of gender would be low bx females/males have similar characteristics and would each be therefore cocentrated on one number. I then figured the second to last SD was referring to Rania’s overall, which explained why I got a higher answer than Peter’s SD. It is probable that I got these wrong considering I was aloud to leave early for a sport so I stupidly rushed to finish in under an hour but can someone please verify why this reasoning is correct or incorrect.</p>
<p>^Sorry for poor spelling and grammar-i’m attempting to type w ipod</p>
<p>guys, for the question where we had to use 2prop z test, i just said “i used my calculator and used 2 prop z test” will i get marks off? or did i have to say the formula</p>
<p>I agree with Kmarie…For the last part of # 6 I said reasoned tht it was talking about the SD of women and men separately. In part before tht, I got raina’s SD to be just a little more than the guy’s. Im pretty sure this is correct. However, wht was reasoning for last part???</p>
<p>On the off (or maybe not-so-off) chance that the CollegeBoard reads this thread and they find that you are directly ignoring an agreement you legally abided to, you will be in a world of trouble. Why test your fate in that way, especially if you’re not a senior?</p>
<p>I JUST WANNA KNOW MY SCORE haha</p>
<p>PurplecakePie, It’s fine as long as you list the z-value, the p-value, and maybe the 2 proportions…</p>
<p>Yeah I probably shouldn’t discuss any more specifics for a few hours…the 48 hour limit is this afternoon.</p>
<p>@Purplecakepie, you can say you used a 2-proportion z-test without the actual formulas, but you should state that the conditions are met, the z- and p-value, and all the other necessary information…</p>
<p>@Ca11M3Kob3 Yeah I got Peter’s to be .413 and Rania’s to be something around .427…</p>
<p>Does anyone know if collegeboard requires you to pool on the two proportion z-test? It completely slipped my mind during the test and I didn’t pool.</p>
<p>My teacher told me pooling is optional. He also said if you want to pool it then you would have to state that you pooled the data. Nevertheless I haven’t seen any past exams which required you to pool the data</p>
<p>FRQ have been released:
<a href=“Supporting Students from Day One to Exam Day – AP Central | College Board”>Supporting Students from Day One to Exam Day – AP Central | College Board;