Problem 1: Use arithmetic operators and mean() to compute the average county's change in income percentiles for Black females and males and white females and males whose parents were at the 25th percentile of the national income distribution. These nationwide averages will indicate the typical intergenerational mobility in income rank for lower-income persons a given demographic group.
Problem 2: Assign these values to a vector called avg_mobilitywhere values are ordered as the means for [1] Black females, [2] Black males, [3] white females, and [4] white males.
Problem 3: Write two sentences summarizing your findings about the relative mobility of lower-income persons across these demographic groups.