Weekend HW

This weekend, please complete the chapter 12 reading questions. If you did not get a paper copy in class, you can find these below. (Some of you may have already done these, as they were posted over the exam week).

Other than that, be ready to hit the ground running when we get back. We are going to move very quickly through chapters 12 and 13; we have to be finished with the "methods of data collection" unit in the last week of February, so that leaves us with 13.5 days to learn the unit and take our quizzes and tests! Rest up, watch the Superbowl (go Seahawks), and come back ready to work!

One thing to keep in mind when you do this homework--you could, of course, just find these specific answers in your book. However, if you spend a little more time to more thoroughly read the chapter, you will likely have a better understanding of everything as we quickly move through our notes in class.

Weekend HW: Chapter 12 Reading Questions

1.       Explain the relationship between a sample and a population. (p. 270)

2.       What does it mean for a sample to be biased? (p. 271)

3.       What is a census? What are three reasons it might not be the best possible type of sample? (all on p. 274)

4.       There are four types of samples described from page 276-279. Briefly describe each of these four types of samples.

·         Simple Random Sample:

·         Stratified Sample:

·         Cluster Sample:

·         Systematic Sample

5.       There are two ways to “sample badly” described on page 282. Describe each of these types of sampling.

·         Voluntary Response Sample:

·         Convenience Sample:

6.       Define each of the types of bias below (use the glossary on page 288).

·         Voluntary Response Bias:

·         Non Response Bias:

·         Response Bias:

 

Test Tomorrow!

Tonight...study! Tomorrow we have a test for our first grade of the third quarter! The test is 25 multiple choice questions. The topics are listed below. You can use a graphing calculator throughout.
(The four bullets in italics represent the 4 questions you have not learned how to do yet. These will not be counted toward your grade).

• Find the mean of a sample
• Find the median of a sample
• Find a basic probability (Ex: Find the probability the spinner lands on blue.)
• Find probability using "AND," "OR," etc. (Ex: Find the probability you spin a spinner 3 times and all 3 spins are red._)
• Find a probability using "AND," "OR" without replacement (Ex: There are 10 people to be selected for a field trip, 6 males, 4 females. Find the probability that we select two people and they are both males.)
• Use a regression equation to make a prediction (substitute for x!)
• Identify the shape of a distribution
• Use z-scores to compare two different test scores
• Find the overall mean given information about 2 samples (Multiply each sample mean by the size of the sample; then, add these answers/products; then, divide this sum by the total number of people)
• Evaluate potential conclusions drawn from a study
• Understand how summary statistics (mean, median, mode, range, variance) are affected by outliers
• Read a scatterplot
• Estimate the correlation of a scatterplot
• Identify the explanatory, response variable in a study
• Create a confidence interval
• Identify which type of hypothesis test/interval should be used
• Find the percentile (% left) for a given value using a Normal model
• Evaluate a study
• Interpret slope
• Interpret p-value
• Know the measures of center and spread
• Find expected value
• Calculate a p-value
• Know which type of data collection allows us to determine cause and effect

This weekend your homework will be the chapter 12 reading questions...you can find these in one of the posts below (or you got them in class today). Feel free to get a head start on your homework!

Onto the second semester...

So what did you think of the midterm? I know it was tough; this is a pretty authentic AP experience. Now that you have an idea about the level of difficulty, you have a better idea of how to prepare yourself for the AP exam!

I'm looking forward to our next semester...believe it or not, we only have one more full quarter before the AP exam! We will spend about 3 weeks finishing our "methods of data collection" unit, and then we'll start learning about my favorite stuff, hypothesis tests and confidence intervals!

On Tuesday night you will have the reading questions below for homework. Feel free to get them done (so you don't have any homework on Tuesday night)!

Tuesday's HW: Chapter 12 Reading Questions

1.       Explain the relationship between a sample and a population. (p. 270)

2.       What does it mean for a sample to be biased? (p. 271)

3.       What is a census? What are three reasons it might not be the best possible type of sample? (all on p. 274)

4.       There are four types of samples described from page 276-279. Briefly describe each of these four types of samples.

·         Simple Random Sample:

·         Stratified Sample:

·         Cluster Sample:

·         Systematic Sample

5.       There are two ways to “sample badly” described on page 282. Describe each of these types of sampling.

·         Voluntary Response Sample:

·         Convenience Sample:

6.       Define each of the types of bias below (use the glossary on page 288).

·         Voluntary Response Bias:

·         Non Response Bias:

·         Response Bias:

I'm looking forward to a fresh start, new seats, and a new semester! Until then, rest up, relax, enjoy your (hopefully 3 day) weekend, and I'll see you Tuesday!

Exam Time!

The next time I see you it'll be time for the midterm exam!

Study, study, study! Then, study again! Then, study again again!

Here are the topics in your Barron's review book (table of contents) that are on the midterm exam:

• Topic 1: Graphical Displays
• Topic 2: Summarizing Distributions
• Topic 3: Comparing Distributions
• Topic 4: Exploring Bivariate Data
• Topic 5: Categorical Data/Frequency Table
• Topic 9: Probability as Relative Frequency
• Topic 10: Combining Independent Random Variables
• Topic 11: The Normal Distribution

I'm really looking forward to this opportunity for us. As I have mentioned (many times), this is an excellent chance for us to assess our knowledge and try to predict how we might do on the AP exam. Also, (as I have mentioned), you have continually met and exceeded my expectations. Do that again on the midterm--but that can only happen with preparation!

Use your resources.

Check the "resources" link on the right for an outline of the content (topics) we have covered as well as a list of ways to study (I passed this out in class).

See you next week!

Have an awesome 3-day weekend!

Stamps Due Tomorrow!

Tomorrow is the last day of the quarter, and so, our stamps are due!

Your homework tonight is to get your stamps together to turn in tomorrow!

• Count them (twice) and write the total on the front
• Staple/fasten them together or put them in an envelope/bag/etc.
• I will randomly select 5 people per class to double check (their counting)

In addition, if you like, you can complete the 9 multiple choice questions (provided in class or below) for extra credit. These will only be accepted tomorrow. Enjoy!

One more class until exams! See you manana!

Extra Credit Multiple Choice:

 



Stat HW!

Tomorrow we will wrap up our work with simulations--we'll answer any lingering homework questions (from the weekend or before) and we'll try one more practice problem. We'll also have a stamp problem that reviews the Normal model.

Tonight, please complete the 5 multiple choice questions provided in class. These will be collected and graded as a take home quiz!

Enjoy! Three of the multiple choice deal with simulations, and the last 2 are review...good luck! Maybe I'll see you after school to work on them?!

Only 2 more classes before the big midterm! Yay!

Have a great Wednesday!

4 Classes Until Midterms!

Sorry for the late post...for some reason I couldn't log into my Gmail at school today.

Anyway, your homework tonight is to start studying for your midterm! For real!

If you don' t have time to start studying, make a plan:

• Roughly when will you try to study for AP Stat (and your other classes)?
• How will you study?
• Read through the list of options provided today in class (or under the classroom resources link on the right)
• Select a few different ways you would like to study

Map out your strategy. And start now. If you study a little each day, you are likely to do better on the exam than if you try to cram it all into one night! (Of course we've all had to "cram" though :) )

See you all tomorrow for some simulations! Since we spent today's entire class on review, tomorrow will be completely devoted to simulations.