# Shared Flashcard Set

## Details

AP Stats Ch 1
ch 1 notes
19
Mathematics
08/27/2012

Term
 r=?
Definition
 Correlation Coefficent
Term
 if r=1?
Definition
 Perfect linear fit where all points hit the line
Term
 Population
Definition
 The entire group of interest
Term
 Sample
Definition
 Subset of the population, selected in some prescribed manner
Term
 Variable
Definition
 Any characteristic that changes from one group to another
Term
 Census
Definition
 Sampling the entire population of interest
Term
 Statistics
Definition
 The science of collecting, analyzing and drawing conclusions from data
Term
 Descriptive
Definition
 Methods for organizing and summarizing data
Term
 Inferential
Definition
 making generalizations for the entire population from a sample's results
Term
 Univariate
Definition
 One variable
Term
 Bivariate
Definition
 Two variables
Term
 Multivariate
Definition
 Two or more variables
Term
 Two types of univariate data
Definition
 categorial or qualitative data or numerical or quanitative data
Term
 categorial or qualitative data
Definition
 data that can be put into categories
Term
 numerical or quantitative data
Definition
 data that can be measured
Term
 Two types of numerical data
Definition
 discrete and continuous
Term
 Discrete data
Definition
 Isolated points on a number line (exact)
Term
 Continuous data
Definition
 Intervals on a number line (range)
Term
 Find relative frequency
Definition
 Divide frequency by total
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