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Stats Ch2

TermDefinition
Frequency Table A table listing the categories in a categorical variable and gives the count of observations for each category.
Relative Frequency Table A table listing the categories in a categorical variable and gives the percentage of observations for each category.
Distribution of a Variable The possible values of each variable and the relative frequency of each value
Area Principle Data should be represented by the same amount of proportional area.
Bar Chart A chart in bar form whose area represents the count of observations for each category of a categorical variable.
Relative Frequency Bar Chart A chart in bar form whose area represents the percentage of observations for each category of a categorical variable.
Pie Chart A chart in which a circle representing the "whole" is divided into corresponding proportions for each category.
Categorical Data Condition Choosing the correct method for displaying and describing categorical data (not quantitative data).
Contingency Table A table displaying counts or percentages of individuals falling into categories on two ore more variables.
Marginal Distribution The distribution of either variable alone. Category Total/ Total Total
Conditional Distribution The distribution restricting the who to consider only a smaller group of individuals. Intersection of 2 Categories/Category Total
Independence When variables give roughly the same conditional distribution for each category of the other.
Association When we see evidence that one variable depends on another.
Created by: HowardGeometry