Calculate the distance in meters from all the volcanoes in the U.S. to the UT Arlington Geosciences Building. After calculating the distance, change the symbology to show these distances using 10 equal interval classes. Turn in the range of the smallest (closest) class.

• Obtain the volcano data from the National Atlas.
  
• Use the U.S. National Atlas Equal Area projection system (Predefined/Projected/Continental/North America/U.S. National Atlas Equal Area)
• No WinZip, WinRar, or equivalent on your computer to open the .TAR files from National Atlas? Download Peazip. Is free, safe, and can even be run as a portable app from a USB drive.

If you get a sample size exceeded error message when changing the symbology, don't panic. The default sampple size is 10,000 and this can be increased to accommodate. Click the 'Classify' button and then click the 'Sampling...' button and increase the sample size to exceed the number of unique values in your feature class.