dotplots
A dotplot is a graphical display of the distribution of a numeric variable in which each observation is represented by a dot. The dots are placed along a horizontal number line at positions corresponding to the data values, and when several observations share the same value, multiple dots are stacked at that value.
Construction and variants: A standard one-dimensional dotplot uses a single row of dots. Variants include back-to-back
Uses and interpretation: Dotplots help reveal distributional features such as symmetry, skewness, gaps, clusters, and potential
Limitations and considerations: Overplotting can obscure frequencies when many observations share values, and readability depends on
See also: histogram, stem-and-leaf plot, box plot, violin plot, back-to-back plot.