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M 1/6/03
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HW due: mini-project problems 3 through 6.
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T 1/7/03
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HW due: You may turn in the
mini-project problems 3 through 6
today without penalty. Use the extensive hints given in class Monday for
solving problem 5(c), and use the values that we agreed upon in class for the
probabilities in problem #3:
P(S) = .5
P(G) = .001708
P(U) = .0006
P(S Ç G Ç U) = 0
[rationale: no weirdos in the STA
Upper School]
P(S Ç G Ç ~U) =
.000002
[rationale: two weirdos in a city of
half a million who wear galoshes on sunny days, i.e., half the time, so
2/500000 multiplied by .5]
P(U Ç G Ç ~S) =
.000006
P(S Ç ~G Ç ~U) =
.499698
You will learn more, of course, if you compare the answers these assumptions
give you for parts (d) through (n) with the answers for parts (d) through (n)
that your own assumptions produced. However, I will be checking based on the
assumptions above.
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W 1/8/03
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Review day. Bring your
questions.
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Th 1/9/03
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Test on §5.3 and all of
Chapter 6.
(All multiple-choice. Questions from the Dec. 20 in-class
reading assignment are fair game. If you did not get the assignment from
the STAtistics Zone or from Dr. Bennett on that day, I apologize.)
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F 1/10/03
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Another
review day. Bring more questions.
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M 1/13/03
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Monday Madness (Liam’s exam study session)
will begin, according to Liam, no later than 8:10 a.m. in one of the AV rooms.
Liam’s gameplan is to cover the entire semester in a single 90-minute crash
review followed by Q&A to fill in the gaps. Then, he’ll do the whole
thing over again! Except for a lunch break from 12:00 to 1:00, Liam will be there
nearly all day. If you have questions between 10:00 and 11:00, you can probably find me
in my office, but I won’t interfere with Monday Madness directly unless you
want me to.
Additional study questions are now available (click here) in case you get tired of
working the the Barron's questions, the Nov. 19
test, and the answer key. Please note,
the Barron's book is the single best source for study questions, since the
questions I posted on the Web are not comprehensive. At Liam’s suggestion, I
am also providing some additional details regarding the exam itself.
Exam format will be 27 multiple-choice questions (collected after 61
minutes), then a 5-minute break, and then 3 free-response questions (paced at
13+13+25 minutes). Total length of the exam will be 112 minutes plus the
break, or slightly under 2 hours. Timings will match the pacing of the AP
exam, except that the real AP exam is 3 hours instead of 2. You will probably
not have enough time to answer all the multiple-choice questions, so pick the
ones you know you can answer and focus on those.
Extra-time
students will do 18 multiple-choice questions during the first 61 minutes and
will have 76.5 minutes (time and a half) for the free-response section.
Exam content will be based largely upon the Barron’s review book, so that would be
an excellent source for review problems. You are responsible for Chapters 1-6
and for anything discussed in class, including Chebyshev’s
Theorem and the Rule of 72. Also,
I apologize for the misunderstanding that some students apparently had, but
you are responsible for PPV
calculations of the type shown in the Dec. 20 in-class
reading assignment. Your formula sheet (which will be provided for you)
covers all the formulas you could possibly need except for the crucial z = (x – m)/s
formula, which by now you probably have memorized anyway.
Midterm Exam. Room S, 2:00 p.m. Bring pencils, calculator, and spare batteries.
There is no need to bring paper; any
paper that you do not put away before the exam starts will be confiscated.
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M 1/20/03
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No school (holiday). Second semester, midterm, and first semester
grades are now posted. Quarter and semester averages are still being
computed.
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T 1/21/03
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No
school (teacher work day).
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W 1/22/03
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Classes
resume.
In class: Definition of statistical significance and p value.
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Th 1/23/03
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HW
due: Begin reading in §7.1.
In class: Discrete and continuous r.v.'s. Correction to book's erroneous
definition of discrete r.v. The all-important link between statistical
significance and r.v.'s, namely that a statistic is a random variable.
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F 1/24/03
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HW
due: Finish reading §7.1.
In class: Pop Mini-Quiz on Discrete vs. Continuous Random Variables.
After quiz: The two statistics of greatest interest to us (since when we
think of them as r.v.'s, we can analyze their distributions and make conclusions
about the world around us).
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M 1/27/03
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HW
due: Read enough of §7.2 to understand how to compute mean, variance, and
s.d. of random variables. Refer to your notes from the end of Friday’s class.
Then write #7.7, 7.13, 7.14, 7.28.
Because we were 5 minutes long on Friday, today’s class will be shortened by
at least 5 minutes. If for some reason you cannot make class today (there are
rumors of Senior Skip Day flying about), remember to e-mail your HW to me no later than 1:25 p.m. You are responsible for the material covered in class today, even if
we have a class of one.
In class: Random variable mini-worksheet.
After you have worked all the way through this, check the solution key.
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T 1/28/03
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Quiz (15 points) based
on yesterday’s random variable mini-worksheet.
HW due: Finish reading §7.2. If you missed class yesterday, you’ll want to
work on the random variable mini-worksheet
and read the solution key so that you are
prepared for the quiz.
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W 1/29/03
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HW due: #7.32, 7.34, 7.36,
7.42. Also please think about (and solve if possible) the following AP exam
problem:
If men's heights are N(69, 2.5) [reminder: this means normally
distributed with a mean of 69 inches and a s.d. of 2.5 inches] and women's
heights are N(65, 2.0), then what is the probability that a randomly
selected man is taller than a randomly selected woman?
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Th 1/30/03
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HW due: Read the first part
of §8.1 (through p.423) and write #8.3, 8.4, 8.5.
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F 1/31/03
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HW due: Finish reading §8.1
and write #8.20, 8.21, 8.23.
In class: Everything you always wanted to know about binompdf and binomcdf
but were afraid to ask.
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