According to the Bureau of Labor Statistics, the official unemployment rate was 5.8% among Blacks and 3.1% among Whites in February 2020. (This was just one month before the massive increase due to the COVID-19 pandemic.)

a. Identify the response variable and the explanatory variable.

b. Identify the two groups that are the categories of the explanatory variable.

c. The unemployment statistics are based on a sample of individuals. Were the samples of White individuals and Black individuals independent samples or dependent samples? Explain.