AP Stats Final 2024

What letter do we use to represent correlation coefficient?

• c

• p

• r

• h

Describe the correlation in the graph shown

• strong positive

• strong negative

• weak negative

• weak positive

What would you expect the correlation between study time and test grades to be?

• close to 1

• close to -1

• 0

• cannot be determined

What type of sample is created by dividing the population into groups and then randomly selecting some of those groups for further study?

• cluster sample

• stratified random sample

• simple random sample

• voluntary response sample

If no alpha level is given, what alpha level is assumed?

• 0.01

• 0.10

• 0.25

• 0.05

What is the name of the entire group of individuals or instances about whom we hope to learn

• Control group

• sample

• population

• parameter

• Porter Ostermiller

What is it called when sampling methods either over or under emphasize some characteristic of the population

• error hypothesis

• weak correlation

• bias

• Type II Error

What does the sampling distribution for the difference in sample proportions represent?

• The distribution of possible values for the difference between the sample proportions if the study were repeated many times.

• The distribution of the sample proportions from each city.

• The distribution of the difference between the population proportions in the two cities.

• The distribution of the sample means from each city

If you were trying to compare the sales of two ice-cream flavors, chocolate and strawberry, and are going to collect a random sample from each, which of the following sample sizes would the Central Limit Theorem not apply to?

• 40

• 50

• 10

• 35

An event A will occur with probability 0.5. An event B will occur with a probability 0.6. The probability that both A and B will occur is 0.1.The conditional probability of A given B is?

• 1/2

• 3/10

• 1/6

• cannot be determined