<p>Post any comments, suggestions, advices, questions, etc., regarding the AP Statistics 2010.</p>
<p>So far, my class finished up to probability.</p>
<p>vacation made my brain into mush. i think we left off with the tcdf/pdf function -.-</p>
<p>what books are you guys using? my book is really confusing, and my teacher gets confused as well (aughhhhh!) she’s a psychology phd… so her way of teaching is different.</p>
<p>also, what calculators are you guys using?</p>
<p>I really don’t like the class and I’m starting to wish I took Calc instead. There are a lot of trivial things about it and it’s not really a math class. The math concepts are really elementary and it’s more of a social science course if you ask me. Either way, it’s an easy A.
/rant</p>
<p>Our class is using the using “The Practice of Statistics” as our textbook. I got Barrons as a prep book though. I’m using a TI-83 and it seems like it’s the right calculator to have. Our textbook and Barrons both use it for examples. </p>
<p>We just finished probability.</p>
<p>BubbleTeaChibi - The Practice of Statistics at my school, but I’m using Stats: Modeling the World to go along with it. They’re both great textbooks. TI-84 is easier to use for AP Stats.</p>
<p>Harambee - I have similar opinion as you: Statistics = Math + Social Science. I do like the class, but not as much as calculus. But Statistics has proven useful in my AP Physics B class, specifically the experiments.</p>
<p>we use Stats:Modeling the World as well.</p>
<p>as for calcs, I got an 83+ in 8th grade, which I used throughout 9th. 10th grade I got an 89 titanium which was beast on the AB exam, and which I have used since then. Currently using it for my BC class as well. the book teaches you using the ti-83 OS, so I bring both calcs with me to class >.> however, once i learn what the functions do and everything, I find out the ti-89 equivalent myself. the stats function son the 89 are a little harder to use but are more powerful/give your more information/make things easier in general XD</p>
<p>A fair coin (one for which both the probability of heads and the probability of tails are 0.5) is tossed 60 times. The probability that less than 1/3 of the tosses are heads is ____?</p>
<p>What I Did</p>
<p>binomcdf(60,0.5,19)=0.003, but the answer key says 0.0043</p>
<p>A college basketball player makes 80% of his free throws. Over the course of the season he will attempt 100 free throws. Assuming free throw attempts are independent, what is the probability that he makes at least 90 of these attempts?</p>
<p>What I Did
1 - binomcdf(100,0.8,89)=0.0057, but the answer key says 0.0062</p>
<p>Thanks in advance!</p>
<p>bump 10 char</p>
<p>We’ve started on t-distributions.</p>
<p>for my class, chi-square distribution. Sadly we won’t finish since term ends next week, so inference of regression line is up to those studying for the ap exam.</p>
<p>We have done all but pool testing, chi square, and we are currently on samples with p0 and p.hat.</p>
<p>The only thing left for us is chi-square as well.</p>
<p>my class is doing inference with t distributions. Does anyone know where i can get official practice tests? Ap central had the free response, but i am looking for multiple choice too!</p>
<p>and for mathlete314, your way of solving seems correct so hmm, i dont know.</p>
<p>I’m in IB Stats right now and we’ve actually finished everything awhile ago so we’re just doing old exams for practice almost every class until the exams in May. But that’s because we had a bunch of Summer assignments that went over chi-square and t-tests since we needed that info. for our Stats first-hand research paper. I’m so glad I chose Stats over Calc (SL Math)…</p>