Friday, October 3rd

The following is what you will complete during my absence.

1) The substitute teacher will hand out the answer key to the homework.  Look over it as a group.  If there are any problems or questions try to resolve them as a group. I also linked the answer key below for anyone who is absent.

Answer Key - HW - pgs. 129-133 (5-15 odd, 25, 27, 28, 38, 39, 41)

2) The substitute should also handout a classwork worksheet that can be completed with your Syracuse Partner.  Put both (all) of your names on your worksheet/loose-leaf.   Activity 14-8, 14-10 and 14-11 should be completed on a loose leaf sheet of paper.  Place completed work in the tray in the front of the room.  I have linked the classwork below for anyone who is absent.

CW - The Normal Distribution

3) Upon completing the classwork you can start the homework which will be Tuesday October 7th.:

HW - Complete pgs. 129-133 (17, 29, 43, 45, 47)
          Read Chapter 7 (146-160)

The Normal Model (cont.)

In class students continued working with the normal model to find normal percentiles (NormCDF in calculator) and percentiles to z-scores (InvNorm in calculator).

The homework is listed below and the notes are attached.

Notes - Normal Percentiles

HW -  pgs. 129-131 (5-15 odd, 25, 27, 38, 39, 41)
       -  Read Chapter 7 by Tuesday 10/7

The Normal Distribution

In class students took Quiz #2 on Categorical and Quantitative Data.  Afterwards, students were introduced to their first model in the course - The Normal Model.  The Normal Model will be used to talk about populations that are "normally distributed," meaning the shape of the distribution is unimodal and roughly symmetric. 

Students learned about the 68-95-99.7 rule which states that for a normal population 68% of the data lies within one standard deviation(σ) of the mean (μ), 95% of the data lies within 2 standard deviations of the mean and 99.7% of the data lies within 3 standard deviations of the mean. 

*Anything beyond 3 standard deviations of the mean is unusual.

The notes are attached.  The only homework is to get the AP Statistics Contract signed which I have linked below.

Notes - The Normal Model

AP Statistics Contract

Z-Scores

In class students were introduced to z-scores which are number of standard deviations away from the mean.  We now have a way of comparing apples to oranges.  How far away datum is from the mean tells us whether something is unusual or not.  Standardized tests such as the SATs and ACTs are scored based upon z-scores.

The notes are attached and the homework is listed below.

Notes - Z Scores

HW - Read pgs. 111-126
          Study for Quiz #2
          Investigative Task #3 - Auto Safety - Due 9/24

Comparing Distributions

In class students learned the various ways in which to compare distributions using the following:

                                              1) Histograms
                                              2) Back-to-Back Stemplots
                                             *3) Boxplots (2 or more distributions)

In class we spent time learning how to draw boxplots using the 5 number summary.  Students should be conscious of outliers (1.5 x IQR ± the quartiles) and extreme outliers (3 x IQR ± the quartiles).

The homework is listed below.  The notes and Investigative Task #3, due Wednesday 9/24, are attached.

Notes - Comparing Distributions

Investigative Task #3 - Auto Safety

HW - complete pgs. 99-101 (26-29, 34)
          read pgs. 104-109

**Quiz on Quantitative data Wednesday 9/24**

The 5 Number Summary and Symmetric Distributions

In class students learned how to use the 5 number summary (min, Q1, med., Q2, max) to describe a asymmetric distribution.  Students also learned how to find the Interquartile Range (IQR) = Q3 - Q1. 

Afterwards, students learned about symmetric distributions.  For symmetric distributions we use the mean and standard deviation to describe the center and spread, respectively.

The notes and homework are attached. 

Notes - Symmetric Distribution

HW - Complete Investigative Task #2 (attached below)
          Read Chapter 5 - Comparing Distributions

Investigative Task #2 - Dollar for Scholars

Quantitative Data

In class students took their first quiz on categorical data.  Afterwards, students were introduced to quantitative data and the 4 distributions used to display quantitative data:

                                      1. Histograms
                                      2. Stem and Leaf Plots
                                      3. Dot Plots
                                      *4. Box Plots (used to compare 2 or more distributions)

Students also learned how describe quantitative distributions:

                                       1. Shape - a. symmetry/b. modes
                                       2. Center - a. mean/ b. median
                                       3.Spread - a. Standard Deviation/b. Interquartile Range (IQR)

The notes are attached and the homework is listed below.

Notes - Quantitative Data

HW - pgs. 72-73 (7-15 odd)

Review - Catagorical Data/Contingency Tables

In class we reviewed the material on categorical data and contingency tables for Quiz #1 which will be administered on Friday.  Afterwards, students completed Groupwork Activity #1. 

For homework, study for the Quiz #1, complete Investigative Task #1 and read Chapter 4.

Contingency Tables

In class students were introduced to contingency tables that showed the interaction between 2 variables.  We can use a side-by-side bar chart, segmented bar graph or comparative pie charts to display the data.

Students were also introduced to marginal and conditional distributions.  Marginal distribution is the distribution along one variable.  Conditional distribution is the distribution of one variable along another.

If the conditional distribution = marginal distribution; we say the variables are independent.  If conditional distribution  ≠ marginal distribution we say there is an association between the two variables.

The notes are attached and the homework is listed below.

Notes - Contingency Table

HW - pgs. 40-43 (21-35 odd)



Due Friday:

Investigative Task #1 - Race and the Death Penalty

Read Chapter 4 - Displaying and Summarizing Quantitative Data

Introduction to Statistics/Categorical Data Displays

In class students were introduced to the world of statistics.  We also collected some class data and created some categorical data displays (bar graphs/pie charts).

The homework is listed below and the notes are attached.

Notes - Intro to Stats/Categorical Data Displays

HW - Read Chapter 3
        - Complete pgs. 38-39 (5-15 odd)


P.S. - Did I spell "Categorical" as "Catagorical" during the entire period and nobody corrected me?

First Day!

Welcome Back! I enjoyed meeting all of you today and getting back into the swing of things.  Below, I have attached the course syllabus.

Statistics - Syllabus

HW - Signed Syllabus
        - Finish Summer Packet