Sampling Distributions for Sample Proportions

In class we differentiated between a sample distribution and a sampling distribution.  Afterwards, we took a look at a few examples. 

The homework is listed below and the notes are attached.

Notes - Sampling Distributions for Sample Proportions

HW - pgs. 432-434 (1 - 19 odd)
          read pgs. 419-430 (Sampling Distributions for Sample Means)

Quiz - Probability

In class students took a quiz on probability. 


The homework is listed below.


HW -Read pgs. 412-419

Probability Review

In class students reviewed advance probability focusing on Chapters 16 and 17 in the textbook.  Afterwards, students took a practice quiz.

The practice quiz and answer key are attached below.  The homework is listed.

Practice Quiz

Answer Key - Practice Quiz

HW - Study for Quiz
          Read Chapter 18

The Normal model to the Rescue (again)

In class we learned the we can use the normal model to determine probabilities for samples that are significantly large by checking the 10% condition and success/failure condition. 

The homework is listed below and the notes are attached.

Notes - From the Binomial Distribution to the Normal Model

HW - pgs. 401 - 403 (1, 2, 18, 20, 22, 26, 35)

*Probability Quiz on Wednesday 1/28*

Bernoulli Trials

In class students were introduced to Bernoulli trials which are defined as follows:

                                    1) Two possible outcomes (p = success; q = failure)
                                    2) Probability of Success is constant
                                    3) Trails are independent

In class we looked at geometric probability models (defined by 1 parameter - p) and binomial probability models (defined by 2 parameters - p and n).

The notes and formula sheet is attached below.  The homework is listed.

Notes - Bernoulli Trials (1)

HW - pgs. 401 - 403 (7, 9, 11, 15, 17, 19, 21)
          Read pgs. 397-399

AP Statistics - Formula Sheet

Notes - Continuous Random Variables

In class students learned how to find probabilities for continuous random variables.

The notes are attached and the homework is listed below.

Notes - Continuous Random Variables

HW - pgs. 384-386 (25, 26, 29, 30, 37, 41, 42, 46)
          Read pgs. 388-396

**Quiz next Wednesday January 21st

Adding, Multiplying and adding independent variables.

In class we reviewed what happens to the expected value E(x) and standard deviation s(x) when we add/subtract a constant and multiply/divide a constant.

add/subtract a constant...E(x ± c) = E(x) ± c
                                        s(x ± c) = s(x)


multiply/divide a constant...E(ax) = a E(x)
                                             s(ax) = a s(x)


Afterwards, we talked about what happens when we add two independent variables.


adding two (or more) independent variables...E(x1 ± x2) = E(x1) ± E(x2)

Notes - Discrete Random Variables (cont.)

HW - pgs. 384-385 (21, 23, 27, 33, 35, 36)
          read pgs. 377-381