Box and Whisker Plot

This lesson describes how to construct and interpret box-and-whisker plots using the five-number summary, interquartile range, fences, and outliers. It explains how box plots reveal spread, skewness, and median differences, demonstrates their use in R, and compares salary distributions for Vermont and Connecticut. The lesson also introduces logarithmic transformation for analysing strongly right-skewed data and discusses the limitations of box plots.