Population Profile

http://www.census.gov/2010census/

Population Profiles are graphs that show data collected from a specific population based on certain variables such as age, race, income, and sex. Typically the chart will have two categories on the x-axis and one on the y-axis. These charts are often used to show population growth in Human Geography. This chart shows the population by sex and age in the District of Columbia in 2010. It can be determined that the largest group are females from the age of 20-30. 

Scatterplot

http://onlinestatbook.com/2/describing_bivariate_data/pearson.html

A Scatter Plot is a summary of bivariate data that is made up of individual points plotted on a graph. The points plotted show the relationship between two variables. Scatterplots can be used to form a trend line and show the association between the two variables. In the scatter plot above, the husbands' and wives' ages are plotted together. Since the points are relatively close together, there is a strong association between the two variables. 

Index Value Plot

http://waterwatch.usgs.gov/new/?m=real&w=plot&r=nm

Index Value Plots are plots that are useful in looking at changes over a period of years. These maps show variations in a particular situation. In this plot, the USGS is looking at streamflow in New Mexico. There is a standard line and the etchings in the line show variations from the normal as to whether it was a wet of dry year. 

Lorenz Curve

http://www.unc.edu/depts/econ/byrns_web/Economicae/Figures/Lorenz.htm

The Lorenz Curve, typically found in economics, is a graph that represents income distribution. The cumulative percentage of income is presented on the y-axis and the cumulative percent of households is presented on the x-axis. The black line is the line of perfect equality and the area of inequality is the pink shaded region. The Lorenz curve displays the imbalance of income. 

Bilateral Graph

http://www.theatlantic.com/international/archive/2010/10/china-and-international-rules-self-interested-or-malign/64747/

Bilateral Graphs are graphs that show more two or more sets of data on the same graph. The graph can be a bar graph, line graph, or another form of a graph. These graphs show both positive and negative values. The graph above shows the trade of clean energy products between the United States and China from 2006-2010. The blue bars represent indicate exports, the green lines indicate imports, and the red lines indicate trade deficits. 

Nominal Area Choropleth Map

http://www.eosnap.com/image-of-the-day/australia-september-6th-2008/

Nominal Area Choropleth Maps are maps that display areal data. These maps use different colors and patterns to distinguish certain regions. The information presented by these maps is nominal and qualitative data.  The map above is a map of Australia showing the different climate regions. This map only shows nominal data of what regions experience what type of climate. 

Unstandardized Choropleth Maps

https://www.ncjrs.gov/html/ojjdp/nrs_bulletin/nrs_2001_12_1/page23.html

Unstandardized Choropleth Maps are maps that take raw data and put them straight into the map. These maps can often times be misleading because they don't take into account outliers. The map above looks at arrests of Juveniles in the United States. The results could be skewed because of population differences from state to state.