Exploring Data

Chapter 1


Statistics: the science of the collection, organization, analysis, and interpretation of data.

- a number used to describe set of numbers.

Data/Datum: a piece of information.

Variable: characteristic of a person or thing that can classified, counted, order, or measured.

Survey: gathering facts or opinions through an interview or questionnaire.

Census: a survey of an entire population.

Categorical Variable: a variable whose values represent characteristic rather than measures.

Numerical: a variable that represents numerical value.