Wildcard
When asked to describe a distribution, you should use SOCS. What do all the letters stand for?
Shape, outlier, center, spread
Say you roll 2 dice. You want to find the sum of the 2 dice added together. What is the probability you get a sum of 12?
1/36
Name that Test!
A farmer wants to estimate the mean weight of all tomatoes grown on his farm. To do so, he selected a random sample of 4 tomatoes, and calculated the mean weight of 110g. Assuming that the SD of his tomatoes in the past has been 40g, use the sample mean to create a 99% confidence interval.
One sample z interval
When interpreting probability, you should always start your sentence with...
In the Long Run
How many Units are included in the AP stats ciricuum?
9
A teacher wants to know how many juniors have a pet. She asks every 3rd junior if they have a pet and records her findings. What kind of sampling method is this?
Systematic random sampling
If A and B are independent events, then the probability that BOTH A and B occur is found using...
The Multiplication rule
P(A n B) = P(A) x P(B)
If the truth is that the Ha is true but we fail to reject the Ho, what type of error is this?
Type II
What does b represent in this equation?
Y^ = a + bX
The Slope
What is the name of the final Free Response Question on the AP Stats exam?
Investigative Task
The Empirical Rule states that (approximately): - 95% of the data points will fall within __?__ standard deviation of the mean
2
Describe what a Mutually Exclusive event is
When two events have no outcomes in common
Name that Test!
Are people who drink coffee more stressed than those who do not drink coffee? 300 coffee drinkers and 200 non-coffee drinkers were tested for stress level (on a 100 point scale).
2 samples t-test for μ
If your p-value is less than the significance level, interpret how you conclude your findings
Because our p-value of ___ is less than the significance level, we will reject the null. We have convincing evidence that ...
What day was the AP Stats exam in 2026?
May 7
In the LSRL equation, what is the formula to find b?
b = r x Sy/Sx
Jaxon is the quarterback of the football team. He can complete 65% of his passes. What is the probability notation if Jaxon will throw a completion before 3 passes?
P(x<3)
You're trying to find a Z interval. Give the exact directions of how to get there on your TI-84 calculator.
Press stat, go to Tests, scroll to or press 7.
Over the course of the semester, Brian has built a model to predict his score on a test based on the number of hours he has put into studying. On his most recent test, Brian studied for 3 hours and the prediction using the model had a residual of -5.36 points. Interpret the residual in the context of the problem.
The actual score of Brian's test was 5.36 points below the number predicted, after he studied for 3 hours.
What is the name of the YouTube channel we watch for our notes guide?
Goldie's Math Emporium
Define the Power of a Test.
The probability that the test will find convincing evidence for Ha when a specific alternative value of the parameter is true.
A spinner has 8 sections: 2 blue, 3 yellow, 2, green, and 1 red. You spin the spinner 5 times. What is the probability that you land on yellow all 5 times?
(Take time if you need your calculator)
.007
Name that Test!
An anthropologist is comparing the distribution of types of tools in the Aztec and Mayan civilizations. 800 tools have been found in an Aztec archeological dig and 600 in a Mayan dig.
X2 test for homogeneity
Imagine you create a regression model to predict house prices (dependent variable) based on their square footage (independent variable).
If the R2 is .85, how would you interpret this?
85% of the total variation in house prices is explained by the square footage of the houses.
What Unit and Notes did we learn about Bias in Studies?
Unit 3, Notes 3