AP Stats Vocab

population is divided into groups based on some characteristic

• simple random sample

• cluster sample

• stratified sample

• voluntary sample

Data collected from a sample is called a statistic. True or False?

• True

• False

Choose ALL that are examples of parameters or statistics below:

• mean

• median

• range

• individuals

True or False: Mode is the most common number, or the peaks of a histogram (graph).

• True

• False

What is a sample? Choose ALL that apply.

• A subset of a population

• Helps us make inferences about the population

• A entire population.

What is meant by relative frequency?

• how often something comes up

• the percent of time something comes up

• a table, or a chart, that shows how often certain values or categories occur in a data set

Assigns labels that place each individual into a particular group, called a category.

• Quantitative variable

• Categorical variable

A quantitative variable that takes a fixed set of possible values with gaps between them.

• Discrete variable

• Continuous variable

The ____________ of a variable tells us what values the variable takes and how often it takes those values.

• center

• spread

• distribution

• conditional frequency

Shows the proportion or percent of individuals having each value

• relative frequency table

• frequency table