Please make plans to register for the AP exams in February. The cost will be $91 per exam plus a $15 processing charge per student.

Yes, the costs for AP exams can add up to a lot of money. Please keep in mind that the average statistics or computer science textbook costs about $100. In-state tuition for UGA is over $200 per credit hour (and a stat or computer science course would be a 3 or 4 hour course). And parents are around to help students stay focused while the students are still in high school, theoretically improving the success rate for the students.

January 6, 2015

AP Statistics - We began Chapter 8 - Confidence Intervals. Today we investigated the basic formula for a confidence interval:

point estimate +/- margin of error.

I this case we used the specific formula

sample proportion +/- z* (standard deviation of the sampling distribution of sample proportions)

which worked out to

(count of yellows/total count) +/- 1.96 (sqrt(sample prop * (1-sample prop)/sample size))

HW due Thursday: Ch 8 #7, 8, 9, 11, 14, 15, 18, and 21

AP CS

We are investigating computer number systems, recursive functions, Assembly language, and Lisp. We will participate in the ACSL test on Thursday.

January 7, 2015

AP Stat - do the problems from the book. You may have to complete problems 5 and 6 to get the background for a couple of the problems. There's a 10 question practice quiz on Edmodo for you to complete to check your understanding of critical z values and confidence intervals.

AP CS - there's a practice quiz on Edmodo for you.

January 9, 2015

AP Stat - Finish the worksheet of questions handed out in class on Thursday. You did a great job with the study today! I was particularly impressed with the leadership that several of you demonstrated, the complete understanding of experimental design, and the follow-through in creating the confidence interval for the proportion of the guesses that were correct. Keep up the good work!

Please check Edmodo frequently to benefit from notes, practice quizzes, and other resources that might help you with the topics. I'll try to create at least one little quisz a week to help you out.

The coming week's topic is Confidence Intervals for means.

AP Comp Sci - Please send me an email by Sunday if you have completed the code for the programs on the yellow (senior) or green(intermediate) paper. If you finish, then we will check your code during class on Monday. If not, then be prepared to show me what you've accomplished.

The topic for this coming week is Arrays. You can read up or watch videos if you want to prepare for the week.

The next USACO contest is next weekend. All coding team competitors are expected to participate, and all APCS students are welcome to enroll. We'll give you the file-reading code you'll need for running the programs this week. The contest can be accessed from any internet-enabled computer. You don't have to be present to win, or even to enter.

You are welcome to join the Computer Programming team at any time. Just show up and program.

January 12, 2015

AP Statistics - Finish the colored worksheet (blue, pink, or yellow) before class on Tuesday. The calculations we performed at the beginning of the class today will help you finish the last question.

Also, compute the sample mean and sample standard deviation of the sample collected in class today from the Walk the Line activity. Of course, we will be addressing the conditions for inference (randomness, independence, and Normality), so begin to think about our answers to those prompts.

Please go to the Edmodo site to take the practice quizzes. You can set up your account so it emails you a notice whenever you get a new quiz or notification.

AP Computer Science - Today some of you showed me your completed code for the first ACSl contest. The opportunity has now passed to get credit for this code, but it is always beneficial to take on challenges like these and practice writing new code.

We also worked through some of the recursion problems and looked at adding binary numbers together. You will be quizzed over these concepts on Thursday. You received a copy of the practice quiz today as part of a pack containing information about LISP programming, prefix, postfix, and infix notation, and bit string flicking. That one always cracks me up. Your next contest on these topics will be on February 5th.

We will be covering the seemingly-unrelated topics of arrays and reading of data files Tues, Wed, and Fri of this week. You can use the procedures for reading data files this weekend when you participate in the 2nd USACO event (at home or wherever you are this weekend).

Practice documents are linked to the Edmodo account. You can print up whatever you need there.

January 13, 2015

AP Stat - Work problems 29, 35, 37, and 61 from Chapter 8.

We learned how to construct a CI for the mean of a distribution today.

AP CS - Bring your program where you created a 1X5 array and its 5X1 transpose array (yes, that means TWO arrays!!!) to class tomorrow. Also, practice the problems on the top of the packet handed out in class. Your next quiz (and this one's for a grade) is Thursday.

January 14, 2015

AP Stat students: Today is the last day to complete the first batch of online quizzes over confidence intervals. Let's get 'er done. If you need to join Edmodo, create an Edmodo account and request admission.

AP Computer Science: Bring your student ID to class on Thursday.

January 16, 2015

AP Statistics - Complete the first 4 problems from the package. Be ready to tackle the last one, problem #6. Our test is Wednesday, January 21 over Chapter 8.

If you haven't taken all the practice quizzes on Edmodo you are past due!!! Take them now. Get the credit. You will not be able to get the credit if you delay.

AP Computer Science - Read the sections on Bubble sorts, Selection sorts, Insertion sorts, and Merge sorts in your textbook. Write generalizable methods to perform each of these sorts and bring the program in on your flash drive. Check Edmodo frequently for new resources and self-check quizzes.

If you did not take the quiz on Thursday, show up at 7:45 in Coach Gaines' room to make up the quiz.

January 21, 2015

AP Statistics - We had the Chapter 8 test today. Make up your test on Thursday afternoon if you missed the test today. We begin hypothesis tests Thursday. Make progress reading *State of Fear*.

AP Computer Science - Refer to the homework assigned Friday. Create another set of methods to sort Strings using these four methods. Investigate what you have to do to sort effectively if you have a mix of upper and lower case strings. Thursday we begin to upload data to sort.

January 22, 2015

AP Statistics - Here's a link to the video shown in class today:

http://www.learner.org/courses/againstallodds/unitpages/unit25.html

I have put a few notes and a short quiz on Edmodo related to Hypothesis testing and p-values. Please take the quiz as soon as possible.

If you need me to delete an Edmodo quiz so you can start over, just send a PM through Edmodo. I'd be happy to oblige.

AP Computer Science - You are responsible for being able to code and interpret code for the four different types of sorts of arrays for both int arrays and string arrays.

Pick up challenge questions as soon as you finish Tuesday's assignment (adapting the code to sort strings, the one due Wednesday!!!).

January 27, 2015

AP Stat -- We are performing inference tests for one population. We started with tests for population proportions, touched on Type I and Type II error, and have moved into tests for means.

Finish all the Edmodo quizzes and do problems 27-30 from Chapter 9 for homework.

AP Computer Science -- Complete the sorting and searching assignments. Ask for challenge problems when you are finished. Details are posted in the folders on the STU drive.

January 30, 2015

The last post of January! Yikes.

AP Exam registration begins Monday. Get it done early.

AP Statistics - Read the section in the textbook about Type I and Type II errors and power. We ill continue our discussion on Monday. Take the online quiz that will be posted by Sunday afternoon. Our test over Chapter 9 will be Wednesday. See you Sunday 2-4 PM in Room 313 if you need extra help.

APCS - If you haven't finished the sort or search programs, you are late and losing points. We will start the Picture Lab on Monday. The next ACSL quiz will be Thursday. Be prepared.