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Chapter 3 Terms
Frequency Table, Distribution...
7
Mathematics
11th Grade
08/22/2011

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Term
Frequency Table
Definition
Lists the categories in a categorical variable and gives the count (or percentage) of observations for each category
Term
Distribution
Definition
gives - the possible values of the variable and the relative frequency of each value
Term
Bar Chart
Definition
show a bar whose area represents the count (or percentage) of observations for each category of a categorical variable
Term
Pie Chart
Definition
show how a "whole" divides into categories by showing a wedge of a circle whose area corresponds to the proportion in each category
Term
Marginal Distribution
Definition
Using a contingency table, the distribution of either variable alone. The counts or percentage are the totals found in the margins (last row or column) of the table
Term
Independence
Definition
if the conditional distribution of one variable is roughly the same for each category of the other
Term
Association
Definition
when we see evidence that one variable depends on another
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