Frequency Table
shows the number of individuals having each value
Relative Frequency Table
shows the proportion or precent of individuals having each value
Bar Graph
Shows each category as a bar. The heights of the bars show the category frequencies or relative frequency
Pie Chart
shows each category as a slice of the “pie”. The areas of the slices are proportional to the category frequencies or relative frequencies
Two-way table
a table of counts that summarizes data on the relationship between two categorical variables for some group of individuals
Marginal relative frequency
gives the percent or proportion of individuals that have a specific value for one categorical variable
Joint relative frequency
gives the percent or proportion of individuals that have a specific value for one categorical variable and a specific value for another categorical variable
Conditional relative frequencies
gives the percent or proportion of individuals that have a specific value for one categorical variable among individuals who share the same value of another categorical variable (the condition)
side-by-side bar graph
displays the distribution of a categorical variable for each value of another categorical variable. The bars are groups together based on the values of one of the categorical variables and placed side-by-side
Segmented bar graph
displays the distribution of a categorical variable as segments of a rectangle, with the rea of each segment proportional to the percent of individuals in the corresponding category
Mosaic plot
a modified segmented bar graph in which the width of each rectangle is proportional to the number of individuals in the corresponding category
Association
helps us know if the value of one variable helps predict the value of the other