Here are the slides from M/Tu, Sept 10/11, over boxplots, outliers, IQR, mean vs median, and standard deviation.

• Powerpoint [WEB] 2.3 - Boxplots, Standard Deviation, Mean vs Median (alternately, you can read chapter 5 in the text)

Here are the slides for the lesson on numerical (quantitative) data:

• Powerpoint - Numerical Data (Chapter 4 in the Text)

Tonight's HW is out of the textbook (as will be the case for most of the year). Textbook problem sets are posted here (log in with your school Google account). As a reminder, you can check the class calendar for the list of assigned problems.

Here are the notes/slides for the first block of the new unit over descriptive statistics.
The equivalent material is covered in textbook pages 24-29 (conditional distributions, segmented bar graphs) and 47-48 (stem-and-leaf plots).

• Powerpoint 2.1 - Categorical Data and Stemplots
• Blank copy of class notes handout
• Worksheet - Stemplots (US Presidents) (just a handout for notes)

The following is the worksheet for tonight's homework (due W/Th, Sept 6/7):

• Worksheet (HW #7) - Graphs with Categorical Data

Our first major exam of the year is scheduled for next block, on Th/F, Aug 30/31. Here is the exam review, which counts for a daily grade:

• Review Unit 1 (Designing Studies) (answers are on the last two pages)

Here are the slides/notes for the remainder of the first unit:

• Powerpoint [WEB] 1.4 - Experiments and Observational Studies

Here are the homework problems due next class:

• HW #4 PROBLEMS WEB

Next block we will get the review for the first major exam, and if you want to get a head-start on it, here it is:

• Review Unit 1 (Designing Studies) (answers are on the last two pages)

Ants Count!

Go here to read up on the "Ants Count!" study... there's even a picture of the actual ants!

Here's the YouTube video that we watched in class: