AP Statistics - Unit 1: Exploring One-Variable Data

Vocabulary flashcards covering key concepts and examples of variables from Unit 1 notes.

Statistics

The study and analysis of data; involves collecting, organizing, analyzing, and presenting data to answer questions and support decision making.

Variable

A characteristic, number counted or measured for each data unit; may vary in value.

Data item

An individual value in a dataset associated with a variable.

Categorical (Qualitative) Variable

A variable whose values describe quality, category, or description rather than a quantity.

Quantitative Variable

A variable whose values represent a measurable quantity and allow meaningful calculations.

Eye color

A categorical variable describing the color of a person’s eyes.

Hair color

A categorical variable describing hair color.

Book genre

A categorical variable describing the type or category of a book.

Height

A quantitative variable representing a person’s stature; measured in units like inches or centimeters.

Age

A quantitative variable representing how old someone is; measured in years.

Time (min)

A quantitative variable measuring duration in minutes.

Zip code

A categorical variable used to describe location groups.

Phone number

A categorical variable used as an identifier or contact detail; not a measurement.