Summer Vocabulary

Question 1

What is Statistics?

Answer 1

The study of variability

Question 2

What is variability?

Answer 2

A measure of how “things” are different

Question 3

What are the two branches of AP Statistics?

Answer 3

Descriptive and Inferential

Question 4

Compare Descriptive and Inferential Statistics

Answer 4

Descriptive: explains data that you have. Inferential uses the data that you have to say something about a bigger population

Question 5

What is data?

Answer 5

Any collected information. ie: the number of SK AP Stats students who went to the beach Monday, Tuesday and Wednesday (7, 2, 10)

Question 6

What is a population?

Answer 6

The group that you are interested in. Usually a big group like, “all teenagers in the US” but sometimes smaller like, “AP Stats students at SK”

Question 7

What is a sample?

Answer 7

A subset of the population of interest

Question 8

Compare samples to populations?

Answer 8

We take samples (smaller) to make inferences about a (larger) population

Question 9

What is a parameter?

Answer 9

A numerical summary of an attribute of a population. ie: mean, median, range, etc.

Question 10

What is a statistic?

Answer 10

A numerical summary of an attribute of a sample. ie: mean, median, range, etc.