Assignment task:
The ratio of two kfrranks gives us a measure for the racial and ethnic disparities between two groups' socioeconomic mobility in a given county. Calculate the Black-white and Hispanic-white ratios using the estimates that are pooled by gender (ratios can be represented in data as the division of one value by another).
Assign these as new variables in county called black_white_kfr_ratio and hisp_white_kfr_ratio.
Use the summary() on both of these objects and interpret the measures of central tendency in one or two sentences.