<p>Forget it…When do we get the scores for the Math level 2 test? June 25th?</p>
<p>Yes June 25</p>
<p>still no curve predictions?</p>
<p>No…how do you make curve predictions, that is, mathematically? Don’t you need a huge representative sample of students to determine the curve? IDK. But i would say 44/43…</p>
<p>What weret eh choices for teh exponential regression question? I remember getting an answer of 20-something, but I forget if it was 23 or 24…I think it was 23 ;-(</p>
<p>21 and 24, along with other far fetched ones</p>
<p>
</p>
<p>The common mistake here – assuming that A=400 in a model function y=Ab^x.</p>
<p>In the first case the graph of y=400(1.142821388)^x passes through the points
(0, 400), (5, 779.7179), (10, 1519.9999).</p>
<p>In the second case the graph of y=400(1.162711)^x passes through
(0, 400), (5, 849.9999), (10, 1806.249764).</p>
<p>In both cases – perfect fit in two points and not so good in the third one.</p>
<p>When you enter three given points (x,y) into L1 and L2 respectively and
do ExpReg Y1, you get
Y1 = (411.66982679)1.142821388^x.
The graph of this function passes through
(0, 411.67), (5, 802.49), and (10, 1564.3453) – not through any of the given points, but providing the best fit overall. It is actually called the best fit line.
The correlation coefficient of this function is r=1 – can’t get any better!</p>
<p>When you key in Y1(24), you’ll get 10139.80652 – close enough to 10000.</p>
<p>If you want to do linear or exponential regression by hand – here’s an excellent tutorial: [Linear</a> and Exponential Regression](<a href=“http://www.zweigmedia.com/RealWorld/calctopic1/regression.html]Linear”>Linear and Exponential Regression).</p>
<p>ok so 23 was not an answer choice?..good then I think I picked 24 :-|</p>
<p>thank you gcf</p>
<p>most welcome</p>
<p>
</p>
<p>could someone confirm the answer options for the exponential regression question? i thought there was an answer choice 23, but i hope i am mistaken…</p>
<p>gcf–What do you think you got on the Math level 2 subject test?</p>
<p>^fresh101, I consistently score 800 on Math 2, but my Math 1 fluctuates in 770-800 range.
It’s a shame since I am a tutor by occupation. :o</p>
<p>I think that Math level 1 is more a test of natural intelligence–since it only tests basic concepts, but somehow manipulates the basic problems into a well developed complicated problem–rather than math level 2 because the latter is more a test of acquired intelligence.
Plus, the math level 1 is trickier, kind of like the SAT math…I took a practice test from the blue book, and i scored a 780 on the Math level 1 but when i took the blue book test for the Math level 2, i scored an 800…weird huh?</p>
<p>Just on a sidenote, wow i did not know you were a tutor…did you beast the SAT’s when you were in HS?</p>
<p>Math level 1 and Math reasoning are both tests of your ability not to make one trivial mistake.</p>
<p>Yes, i agree…and mathematical ability more rests upon how you interpret the info…rather than if you mastered a specific cluster of information…which like i said before is more a test of ACQUIRED INTELLIGENCE</p>
<p>IF anybody can please answer the question…</p>
<p>DO i have to send my SAT II math level 2 scores as a sophmore? Or do i wait until my senior year? Im not really sure how this thing works</p>
<p>^you don’t have to send anything in at any time. you could take a subject test freshman year and submit it for your application senior year.</p>
<p>SWEEET, cuz i was just thinking about sending my scores to Yale, had you not said that…now ill wait two more years!! thanks …this way if i do bad, i can still retake it</p>
<p>Back to the SAT math level 2…if you, I took the SAT, remember anything about a markup problem, could you tell me wht you got? </p>
<p>I had 45%…but i just need to double check</p>