Term

Definition
the objects described by a set of data. They may be people, animals, or things.
(Chapter 1.0; Page 2) 


Term

Definition
any characteristic of an individual. It can take different values for different individuals.
(Chapter 1.0; Page 2) 


Term

Definition
places an individual into one of several groups or categories. (Chapter 1.0; Page 3) 


Term

Definition
takes numerical values for which it makes sense to find an average.
(Chapter 1.0; Page 3) 


Term

Definition
tells us what values the variable takes and how often it takes these values.
(Chapter 1.0; Page 4) 


Term

Definition
the distribution of values of that variable among all individuals described by the table.
(Chapter 1.1; Page 13) 


Term

Definition
describes the values of that variable among individuals who have a specific value of another variable.
(Chapter 1.1; Page 15) 


Term

Definition
when specific values of one variable tend to occur in common with specific values of the other.
(Chapter 1.1; Page 19) 


Term

Definition
an association between two variables that holds for each individual value of a third variable can be changed or even reversed when data for all values of the third variable are combined.
(Chapter 1.1; Page 21) 


Term
Symmetric (Normal) Distributions 

Definition
a distribution where the left and right sides of the graph are approximately mirror images of each other.
(Section 1.2; Page 29)
[image] 


Term
Right Skewed Distributions 

Definition
a distribution where the tail of the graph is over to the right side and a majority of the values are on the left. (Section 1.2; Page 29)[image] 


Term
Left Skewed Distributions 

Definition
a distribution where the tail of the graph is over to the left and a majority of the values are on the right.
(Section 1.2; Page 29)[image][image] 

