A box plot, also sometimes called a box and whisker plot is a display of five significant numbers. The maximum value, minimum value, upper quartile (75%), lower quartile (25%), and median number. It is useful in detecting outliers and to see how the data is distributed. In this box plot, a wide range of data points are displayed for peoples' IQ's. As you can see it is pretty evenly distributed with the fifty percent almost in the middle of the upper and lower quartile at around 100. The maximum is over 125 and the minimum is around 67.