<p>I got 30%.</p>
<p>1/2 stock at original price
1/4 stock at 25% off(?)
1/4 stock at 50% off(?)</p>
<p>She bought the stock at 60% less than her original price.</p>
<p>These data may be all wrong lol.</p>
<p>Yea, I’m 90% sure it was 30% profit.</p>
<p>Question: If everyone does poorly on the Math 2, does the SAT improve the curve?</p>
<p>Thanks! (b/c i think i bombed it… lol)</p>
<p>The fire alarm success rate one: Alarm 1 has 92% success rate and Alarm 2 has 96(?)% success rate. Probability of at least one going off is just the probability of the lower one right >_></p>
<p>And the 8 cars in a race where first and last place is known. Total combinations was 6! ?</p>
<p>AHHHHH WTJOHIUEOWBFK, I THINK I PUT 30% LOSS!!!</p>
<p><em>dies in a hole</em>
…i fail at life.
i think i skipped 8??</p>
<p>and for the one where it said the point was (-2,-3) and asked for sin, did yall get -3/square root of 13?</p>
<p>Monchichi</p>
<p>The way it has been explained to me is that ETS actually decides on the curve before the test is administered. If that’s so, then no.</p>
<p>Unless everyone gets 400 or something, they they’d probably do something, lol</p>
<p>and for the one where it said the point was (-2,-3) and asked for sin, did yall get -3/square root of 13?</p>
<p>Yep.</p>
<p>yep 30%</p>
<p>and the stuuupid population after 25 yrs. was is that 109% thing?</p>
<p>The probability of at least one going off is 1-the probability that neither goes off. So the answer is 1-(.08)(.04)</p>
<p>bacdgk…i multipeld the probablities…saw a problem similar in a review book. and i put 6!</p>
<p>yes jonnyboy</p>
<p>backdgk-the fire alarm success one. im pretty sure its .997. because the probability of atleast one of them succeeding is 1 minus the probability of neither succeeding. so 1-(.08)(.04) equals .997</p>
<p>@bacdgk</p>
<p>The chance that one of the two goes off is higher than the chance that the more fickle one will go off. I’m not 100% sure this is right but I took the percentage chance that each alarm wouldn’t go off and multiplied them (.08 * .04) and then subtracted that from 1. This gave me 99.7 or whatever, which was A.</p>
<p>I also got 6!</p>
<p>@jonnyboy1017</p>
<p>I’m pretty sure I said -3/root(13) like you did.</p>
<p>and ya i put 6! as well
and ya i got 109% too indian monster</p>
<p>@indianmonster</p>
<p>I got 109 as well. I did 11.6 * 1.03^25 and then divided that by 11.6 and subtracted 1.</p>
<p>Multiplying the probabilities is the odds that both will go off. The 1-(.08)(.04) makes sense now, I think I got that but decided against it for some reason :/</p>
<p>I’m feeling really good about my score now 
Didn’t get anything that we discussed in this thread wrong yet.</p>
<p>@bacdgk the answer was 7.78%. It was a .3 percent increase or 16.1(1.003)^25 then you needed to find the percent of increase.</p>
<p>FUUU</p>
<p>“and ya i got 109% too”</p>
<p>htf did you guys get 109%, didn;t the question say 30% per year increase, I got some huuuge percent, so i guessed (wrong… lol)</p>
<p>Edit: ■■■■ .3 percent! I saw it and thought .3 chance = 30% Shiza. that would be incredibly unrealistic anyway.</p>
<p>bacdgk- i did that too for the percent population at first. but you have to do 11.6 x (1+.03) to the 25</p>
<p>I think it was 3% Monchichi</p>
<p>…ouch XD</p>