Hump Day!

Wednesday HW: Tonight, please complete the four (chi-squared) multiple choice provided in class! READ BELOW FOR INSTRUCTIONS A/B THE LAST MC!

• The last question does not provide a "two way/contingency table," so this is NOT a chi-squared test for independence! In other words, this is only one categorical variable, so this would be a chi-squared goodness of fit test.....
• First, determine the expected counts for each eye color, based on the first two sentences...
• Then, use the chi-squared formula to find the chi-squared component for each eye color (there are 3 components)
• Then, use your calculator to add these 3 components and find the chi-squared score!
• OR, if you have a the "chi-squared goodness of fit test" under STAT --> TESTS (newer calcs), you can enter the data values in L1 and your expected values in L2, then use the chi-squared GOF test on  your calc!
• SHOW SOME WORK FOR EACH QUESTION--RECORD THE P-VALUE/CHI-SQUARED SCORE FROM YOUR CALC! IF IT LOOKS LIKE YOU JUST CIRCLED LETTERS (WITH NO WORK) YOU WILL NOT EARN HOMEWORK CREDIT!

Here are the answers/steps for the full chi-squared test for independence from the weekend/Monday homework:

This last week(ish) before our exam is all about studying! If you want to succeed with a qualifying score (3,4,5), then you have to PREPARE YOURSELF to do so!

Here are some suggestions for studying leading up to your exam:

• Come to our after school reviews! We will have after school reviews Wednesday, and Thursday this week, and Monday/Tuesday/Wednesday next week.
• Look over any old work you got passed back, including the multiple choice you got back today, your April break take home test, and any other old quizzes and tests...
• Review the test as a whole to see examples of correct solutions
• Investigate the problems you got wrong--find out how to do them correctly using your notes and other resources!
• Watch some AP Stat Guy videos to review various topics!
• Use sites like Learnerator and online practice exams--check the links on the right!
• Look at released free response questions at apcentral.collegeboard.com! (Click on exam homepages, then the course, and you can find all released FR and their rubrics!)
• Try a practice exam in a Barron's book or other review guide!
• Read through your notes!
• Some students (in the past) have typed up outlines of their notes to summarize all of the content--personally, that's how I studied for my exams in college! You learn/remember a lot just from typing the outline (yes, it will take time), and then you can print it out and read through the outline when you're on the bus or walking to class etc.!
• Transfer this table outlining all of the tests/formulas/conditions into your notebook!

We're almost there....stay focused, persevere, keep working hard--for two more weeks!