1. According to the Bureau of Labor Statistics, the official unemployment rate was 15.5% among African Americans and 7.9% among whites as of March 2011. During the 2009 and 2011 recession, the levels of unemployment rate among African Americans has been similar or in many locations higher than those during the Great Depression era.
   1. Identify the response and explanatory variable
   2. Identify the two groups that are the categories of the explanatory variable
   3. The unemployment statistics are based on a sample of individuals. Were the samples of white individuals and African American individuals independent samples or dependent samples? Explain.