A box and whisker chart shows distribution of data into quartiles, highlighting the mean and outliers. The boxes may have lines extending vertically called “whiskers”. A Box Plot in Excel represents the five-number summary. Lastly, FALSE (cumulative argument) is a logical value determining the form of the function. Drag the fill handle from D5 through the column. These lines indicate variability outside the upper and lower quartiles, and any point outside those lines or whiskers is considered. Another way to characterize a distribution or a sample is via a box plot (aka a box and whiskers plot). Specifically, a box plot provides a pictorial representation of the following statistics: maximum, 75th percentile, median (50th percentile), mean, 25th percentile, and minimum.