Categorical Variables: Categorical variables are qualitative characteristics or attributes that divide data into groups or categories based on specific characteristics.
Histograms: Histograms are graphical representations that use bars to display continuous numerical data grouped into intervals (bins). They show the distribution and frequency of values within each interval.
Scatterplots: Scatterplots are graphical representations that use dots (or points) to display paired numerical data from two variables. They show the relationship or correlation between the variables.