<p>I plugged in some number like 10000 and it gave me 55.</p>
<p>Did anyone get the answer for the summation question. I ended up with five but the only answers there were 6 or 8. What was it?</p>
<p>2.6 is correct</p>
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<p>If you’re talking about the arithmetic series question, then previous posters have reached a consensus conclusion that the answer was five. Are you sure it wasn’t there? (I personally omitted that question).</p>
<p>It definitly wasn’t there. There was something like 4, 6, and 8. I was bugging out because I wasn’t sure what to put.</p>
<p>^The one that asked for the first term was it?</p>
<p>I got 5 for that also. I’m positive it was one of the answer choices.</p>
<p>how many can you miss and get an 800? like usually 6? or what</p>
<p>Maybe I didn’t see it. That kinda sucks.</p>
<p>Did you remember any really hard ones?</p>
<p>If you answered every question, you can miss like 5 and get a 800.</p>
<p>Was the answer to question 40ish, the one where it asked you to find the length of the arc, E, 0.92</p>
<p>The following is something you can consider a baseline curve:</p>
<p>Raw Scaled Percentile
50 800 90
49 800 90</p>
<h2>48 800 90</h2>
<p>43 800 90
42 790 87
41 780 84
40 770 81
39 760 78
38 750 74
37 740 71
36 730 69
35 720 66
34 710 62
33 700 58
32 690 55
31 680 51
30 670 48
29 660 44
28 650 40</p>
<p>Keep the following in mind:</p>
<p>The College Board often changes the scaling table slightly to better fit the results to the modified version of the bell curve they use.</p>
<p>However, if you don’t know the precise curves, data, and baseline sets they’re using, it’s very hard to guess the grading scale to the exact digit.</p>
<p>That said, it typically only deviates about ±1, and maybe ±2 very rarely.</p>
<p>This is for two reasons. First, the test questions and difficulty level are substantially similar year to year. CB estimates that, across the history of the test, one scaled score is bounded by a range of about ±30 (that is, a one-time score of 740 is definitely equivalent to a score within the range of 710-770, no matter what year or specific form you’re talking about). That means that adjustments are relatively minor in magnitude when made. The second reason is due to the fact that many students take the test. In a large sample like this, individual fluctuations get smoothed out naturally and the results tend to fit themselves well to a bell-curve. It only takes minor tweaking every year to get the raw results to precisely equal what the College Board wants.</p>
<p>So yes, I think it would be a safe assumption that things on that chart will only change by ±1 (since it doesn’t seem that this test was exceptionally hard or easy).</p>
<p>SO: If you omit none, getting 5 or 6 wrong constitutes the borderline region. Depending on the individual curve, you might get a 790 or 800.</p>
<p>^I think that’s about what I got for the arc.</p>
<p>Another question, (probably a stupid one) what about the one where one has a .92 chance of success and another has a .96 success…the chance that at least one works? In case of ememrgency or something.</p>
<p>Does anyone remember question 25.</p>
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<p>Indeed it was.</p>
<p>Yeah that was one of the ones that I left blank. I usually get the probability questions wrong so I leave them blank. I was supprised that there weren’t any limit questions. The test seemed unusally long.</p>
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<p>0.997 chance that either one or both works.</p>
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<p>Unless that was the tan (a), tan (b), what is angle c question, I have no idea.</p>
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<p>Part II of the temperature question was a limit question in disguise (albeit a very easy one).</p>
<p>I think that sometimes the easier question actually tend to trick people. I ****ed up the cone question because I went through it too quickly. Were there any questions you thought were difficult and still remember the answers to.</p>
<p>General Rak, eventhough I got it right…(I guessed…:p) can you show me how you came up with the .997 probability?</p>