The legend in the map above tells us that the darkest shade of purple indicates that 49.74% to 86.49% of a county's population consist of people who identify as black. A majority of the counties that fall in this category are in the Southeastern United States, which doesn't surprise me at all. However, I thought that the concentration of blacks in Florida would be higher. The entire distribution ranges from 0.01% to 86.49%.
Much of the information presented in this census map series will not come as a surprise to people who have a basic understanding of U.S. history. Although these maps don't really provide additional insight into the distribution of race in the United States, I found this lab to be very helpful. Creating these maps allowed me to work with real Census data as an application of GIS, increasing my familiarity with ArcGIS.
Over the course of the quarter, my overall impressions of GIS changed dramatically. It has always been clear to me that GIS is a powerful and highly informative tool for organizing, presenting, and analyzing spatial data, but when we first started working with ArcGIS, my frustration with the program's learning curve eclipsed my understanding of its usefulness. However, as we did more and more lab assignments, I became more and more comfortable with the program. Now I fully appreciate the versatility of ArcGIS and GIS in general. Anyone can use GIS to present virtually any kind of geographic information as long as the data is available, and while this accessibility has some drawbacks, I think the benefits of GIS far outweigh the cons.
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