I have already imported all needed packages and the data set into Python but my code still won't work.

\# Do higher income counties (those above the 80th income percentile) perform better or worse academically? \# Answer this question by comparing them to the bottom 20 th percentile. \# Produce a bar chart to summarize your findings. Make sure to label the axis correctly and to add a title. high_income_counties = np.percentile (CASchools.income, 80 ) high_income_counties = CASchools.income [CASchools.income >= high_income_counties] low_income_counties =np percentile (CASchools.income, 20) low_income_counties = CASchools.income [CASchools.income = high_income_counties, "high_or_low_income"] = "high income" CASchools.loc[CASchools.income