# Shared Flashcard Set

## Details

Statistics AP Exam
Definitions, Formulas, Ect.
12
Mathematics
04/10/2012

Term
 Individuals
Definition
 the objects described by a set of data. They may be people, animals, or things. (Chapter 1.0; Page 2)
Term
 Variable
Definition
 any characteristic of an individual. It can take different values for different individuals. (Chapter 1.0; Page 2)
Term
 Categorical Variable
Definition
 places an individual into one of several groups or categories. (Chapter 1.0; Page 3)
Term
 Quantitative Variable
Definition
 takes numerical values for which it makes sense to find an average. (Chapter 1.0; Page 3)
Term
 Distribution
Definition
 tells us what values the variable takes and how often it takes these values. (Chapter 1.0; Page 4)
Term
 Marginal Distribution
Definition
 the distribution of values of that variable among all individuals described by the table. (Chapter 1.1; Page 13)
Term
 Conditional Distribution
Definition
 describes the values of that variable among individuals who have a specific value of another variable. (Chapter 1.1; Page 15)
Term
 Association
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]
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