This scatterplot represents old faithfuls eruptions and the waiting time between each eruption as well as how long each eruption lasts. http://en.wikipedia.org/wiki/Scatter_plot
The map above us comparing crime rates in the US against the election results of 2004 the colors indicate the frequency of the crime rates happening in the state.
http://amphibiaweb.org/amphibian/cartograms/
This cartogram is a map depicting the amphibious population all over the world, and shows us where the majority of amphibians live.
This dot distribution map represents the hispanic population all over the united states each dot represents 100,000 people of the Hispanic race living in an area.
hypsometric maps are map that show relief or elevation this map is showing the island of cuba and the higher the elevation is depicted by the red and yellow