General Advice for the a!) Statistics Exam
During the Exam
Relax, and take time to think! Remember that everyone else taking the exam is in a situation identical to yours.
Realize that the problems will probably look considerably more complicated than tho
IV. Statistical Inference
You must be able to decide which statistical inference procedure is appropriate in a given setting. Working lots
of review problems will help you.
You need to know the difference between a population parameter, a sample statistic
Top Nine Phrases to Memorize for AP Statistics
Underlined words/phrases or blanks indicate context is needed.
regression: interpretation, in context, of
1. r 7 positive or negative, weak or strong linear association between explanatog variable
and respons
Given a least squares regression line, you should be able to correctly interpret the slope and yintercept in the
context of the problem.
Remember properties of the leastsquares regression line:
* Contains the point that is the mean of the x-values and is
. . - r '5
II. Surveys1 Observational Studies, and Experiments Emit? \r
Know what is required for a sample to be a simple random sample (SR8). If each individual in the population
has an equal probability of being chosen for a sample, it doesn't mean that
Regression Output
All statistics packages have their own unique qualities, but there is a standardization to the
way in which regression (and other) output are presented.
The terminology will differ depending upon the software used, but you will always se
Exploring Data
son you analyze one-variable data, always discuss shape, center, and spread and anything strange (like
tliers).
ok for patterns in the data rst, and then look for deviations from those patterns. When cementing on
ape:
* Symmetric is not th
cap- o 8
III. Anticipating patterns: Probability, Simulations, Random Variables
You need to be able to describe how you will perform a simulation in addition to actually doing it.
'Create a correspondence between random numbers and outcomes.
-Explain how