Random Dotplot

Inspired by Craig Winske's sketch http://www.geogebratube.org/material/show/id/100672, with suggestions from Jon Hasenbank. Using uniform or random distribution, this creates random integer value data and displays it in a dot plot. How might you use this for teaching? What should students notice or be able to find looking at this data? Updated version that calculates MAD and lets you pick the mean and SD for the normal population: http://www.geogebratube.org/material/show/id/101870