VOCAB TEST TOMORROW!

First off, just skimmed through the AP Stat facebook group, and I'm loving it. It seems like it can be a great resource, everybody should be in there. I love seeing people answering and asking questions, etc. Fantasticness. #davidw.samantham.pauld.jamell.xavierc.kevinh.jacobc.cindyt.

As for your vocab test...here are some more specifics for tomorrow.

1. This is a test of responsibility as much as it is statistical content. It is of the utmost importance that you study hard and start off with a successful first test. If you have any questions throughout the day (regarding definitions), email me at fred.carofano@gmail.com. I'll be out all day so I won't have access to my school email, but these will find me via smartphone.

2. There are 21 words to match. Four words have two definitions. These four words are: outlier, standard deviation, interquartile range, and Normal model.

3. Then, you have to name at least 3 displays for categorical data, 4 for quantitative data, and draw three distributions with a given shape.

4. Make sure you know about shifting and rescaling!

5. Brush up on what a contingency table is!

6. Study the difference between a parameter and a statistic.

7. To identify skewed vs. symmetric distributions, you must know how the mean and median relate!

• Skewed Left: mean < median (because the mean is pulled toward the unusual, low values in the tail)
• Skewed Right: mean > median (the mean, in this case, is pulled higher, toward the tail)
• Symmetric: mean = median (well, they'll be close to equal. Here, the high and low numbers "balance out," and the mean is not impacted in either direction)

8. Make sure you know the relationship between standard deviation and variance.