Descriptive Stats & Graphs

One quantitative variable

Statistics: mean, median, standard deviation, five number summary

Graphical: dotplot, histogram, boxplot

One categorical variable

Statistics: Frequency counts, proportions

Graphical: Bar chart

One quantitative variable by categorical groups

Statistics: compare means, medians, standard deviations, five number summaries

Graphical: side-by-side dotplots, histograms, boxplots

Two categorical variables

Statistics:  two-way tables, row/column proportions

Graphical: Segmented (stacked) bar chart

Two quantitative variables

Statistics: regression line (slope & intercept), correlation, mean, standard deviation

Graphical: Scatterplot