Algebra 1 Assignment for 5/18

Study for your Unit 11 test tomorrow. Refer to the Unit 11 Test Review (and the Review Solutions) as your primary source of studying. You can also use the review in your textbook (starting on page 499). You should of course also review your Function Transformations notes.

Any missing homework is due with the test tomorrow and will need to be turned in to Dr. Yerky.

IXL Review Modules for Unit 11 (modules relevant to today’s lesson are in bold)

AP Statistics Assignment for 5/17

We finished the lesson on ANalysis Of VAriance (ANOVA) today, and you have a short assignment to complete based on it.  Please note that you really don’t need to do most calculations by hand; you can do them on the calculator.  The assignment will count towards your marking period grade.

  • ANOVA Powerpoint – the slide show I used in class (the link to the site with the practice tables is here)
  • ANOVA Homework – Due on Monday, 5/22
  • F-table – for running the Scheffe Test.  Note that if you need a df that is not on the table explicitly, you should use the next lowest value (e.g., there is no 35, so use 30).

Algebra 1 Assignment for 5/16

We went back to Lesson 4 – Another Look at Linear and Exponential Models today. The homework, though, is a separate worksheet: Model Interpretation Practice.

IXL Review Modules for Unit 11 (modules relevant to today’s lesson are in bold)

Algebra 1 Assignment for 5/15

We continued with Unit 11 today, skipping ahead to Lesson 6 – Piecewise Linear Functions. Work on the homework problems found on p 489-490. We will also have a second attempt at the function transformations quiz tomorrow (with a third attempt later in the week), so review your notes for that!

IXL Review Modules for Unit 11 (modules relevant to today’s lesson are in bold)

AP Statistics Final Project Information

All project information can be found online here. Note the following due dates:

  • May 25 – Proposals due (though you are certainly welcome to turn your proposals in before this date
  • May 31 – Data collection complete. You should be done with your data collection by here.
  • June 5 – Presentations complete. The schedule will be announced on Tuesday, so all groups should be ready to present immediately.
  • June 9 – Written reports due. These will be submitted online. Details on what these should look like will be posted soon.

Inspiration for project ideas

  • NPR Hidden Brain – a podcast by NPR Social Science correspondent Shankar Vedantam. Contains descriptions of interesting social and psychological experiments.
  • Freakonomics – a series of popular microeconomics books by Steven Levitt and Stephen Dubner that includes interesting research on exploring the motivations behind cheating teachers and sumo wrestlers, bizarre baby names, and crack-selling mama’s boys. The books are a fascinating read, and the blog adds a lot of interesting ideas.
  • Mythbusters – a Discovery Channel show that tried to take on common myths and misconceptions and test whether their veracity.

Algebra 1 Assignment for 5/12

We did some more practice with function transformations in class today. At the start of class on Monday, we will have a short mini-quiz on these transformations. You’ll have 3-4 attempts on this quiz, and your highest grade will be the one saved.

This weekend, practice some more with transformations using IXL modules P.2 and P.4, both from the Algebra 2 tab (linked below)

IXL Review Modules for Unit 11 (modules relevant to today’s lesson are in bold)

Algebra 1 Assignment for 5/11

Tonight, complete the homework for Lesson 2 of Unit 11 – Horizontal Stretching of Functions, pages 473-474. You may omit question 4.

IXL Review Modules for Unit 11 (modules relevant to today’s lesson are in bold)

Algebra 1 Assignment for 5/10

We have started our last unit before we start reviewing for our final exam in June. This is a very short one (see the calendar and unit information here), so it is very important for you to stay on top of things this unit as there won’t be much time to catch up if you fall behind.

We started with Unit 11, Lesson 1 – Function Transformations. The homework is pages 469-470

IXL Review Modules for Unit 11 (modules relevant to today’s lesson are in bold)

After School Regents Review

From now until the end of the school year, students taking classes that end in a regents exam (like Algebra 1!) can go to H217 after school on Mondays and Thursdays to ask questions, work on review, and generally prepare for the exam.

While the sessions are supposed to be for preparing for the exam directly, the teachers involved have stated they would be willing to help students with other work relevant to their class. This could include homework help or test corrections. Keep in mind, though, that they will need to prioritize their attention to students looking for help for their Regents exam directly.

Please take advantage of this opportunity!

Fractals and Chaos Assignment for 5/9

Now that you’ve had some opportunity to explore Devaney’s Orbit Diagram, please read the Feigenbaum Plot Article you got in class today. It will expand a bit on the work we’ve been doing in class, demonstrate a very interesting phenomenon in the pattern of bifurcations and, most importantly, answer the question of what order to cycles appear in?

Also, check out this Numberphile video about the concept of the Feigenbaum Constant, mentioned in the article.


AP Statistics Exam Final Thoughts

If you’re looking for the review information, you can find it here.

Your AP Statistics Test is Thursday afternoon. Be outside the new gym by 11:50 with your calculator and pencils (non-mechanical, remember!). Do not bring your bag or your cell phone; find somewhere to put them.

Things you had better remember (these are my thoughts, see pages 608-610 of your review book for some further points):

  • The formulas for the mean/standard deviation of a sampling distribution of means and a sampling distribution of proportions are on your formula sheet. Whenever you’re being asked to calculate a mean or a standard deviation, check to see if it’s one of these.
  • Probability questions will come in three categories
    • Direct calculation based on a finite sample space (like rolling dice). Write out all the possible outcomes and count which ones are the ones you want. This also includes two-way tables. Don’t try to use fancy formulas for those; just count!
    • Number of successes questions. For example: “how many model E cars would you expect to see in a 2000 car sample?” or “what’s the probability that at least one out of the four drivers is speeding?” These are applications of the binomial probability model and should be calculated appropriately using the formulas on your sheet.
    • Number of trials questions. For example: “how many chips would you expect to need to check before finding a defective one?” or “what’s the probability that the 5th donor is the first with Type-B blood?” These are applications of the geometric probability model. The formulas are not on your sheet, and so you should memorize them: q^(K-1)*p for a general probability and 1/p for the expected value.
  • How to combine the standard deviations of two or more random variables. Remember: variances always add.
  • How to read the regression output of a linear association. What do “constant,” “estimate/coefficient,” “prob” all mean? Refer to pages 111-112 in your review book or page 729 in your textbook.
  • Know the difference between stratified and cluster sampling and how to identify/use them.
  • Know the important conditions for each of the inference procedures:
    • Everything: Random Condition
    • Any z-test: Success/failure condition
    • Any t-test: Nearly Normal/Large Enough condition
    • Any chi-square test: Expected cell frequency condition
    • Any 2-sample/2-proportion test: groups are independent from each other.
    • Also: know when to use a 2-sample t-test vs. a matched pairs t-test
  • Be mindful of notation. Don’t use x-bar when you should be using µ. Don’t use p when you should use p-hat.
  • Context, context, context. Always frame your answers in the context of the situation. Don’t say, “I am 95% confident that the true proportion of success is between 22% and 37%.” Say instead: “I am 95% confident that the explosive sensor will accurately detect hidden explosives 22% to 37% of the time.”
  • Be complete with your responses. When choosing between two possibilities in a free response question, explain why one possibility is wrong and why the other one is correct.
  • At the same time, don’t give more information than is requested. If the question asks you to describe the shape of a distribution of data from a histogram, don’t discuss center and spread. If the question asks you to explain your randomization procedure for an experiment, you don’t need to explain what the response variable is, how you’re going to measure it, and what a statistically significant outcome would look like. If the question asks you to merely calculate a confidence interval, you don’t have to interpret it.

Algebra 1 Assignment for 5/8

Your test is tomorrow! Here’s what you should do to prepare:

  • Review your vocabulary notes. There’s a lot of vocabulary in this unit that have very particular and important definitions. Make sure you know them well.
  • Do some more review with Statistics Review 2, or with the review exercises in your workbook. Answers to the review you got in class can be found here, while answers to the textbook review can be provided by email (just send me a message).
  • Work on some IXL review. I’ve bolded the ones that would be particularly useful.

IXL Review Modules for Unit 10 (modules relevant to today’s lesson are in bold)