Definitions

1($) are numbers with a 2($)

• 1($) are the objects described in a set of data. 2($) are sometimes people. When the objects that we want to study are not people, we often call them 3($).
• A 4($) is any characteristic of an 5($). A 6($) can take different values for different 7($).

1. A 1($) places an individual into one of two or more groups or categories.
2. A 2($) takes numerical values for which arithmetic operations such as adding and averaging make sense.
3. The 3($) of a variable tells us what values it takes and how often it takes these values.