Use %LET to create a macro variable named ClassAge, assigning to it a value of Pre-K 4.

Read the data set from the file '/folders/myfolders/Week6/School 1 final.csv' and name it final. Then use IF to subset with the macro variable &ClassAge. Name the subset as ClassAge_final. Print it using the macro variable in TITLE.

Create a macro named average with two parameters category and question. In the macro, firstly apply PROC MEANS for the data set final to calculate the mean of &question by &category. In the PROC MEANS, use option NOPRINT, and let OUT=averagescore. Then apply PROC PRINT to print the data averagescore using the macro variables in the TITLE.

Invoke the macro %average(category=Gender, question=f1).

Invoke the macro %average(category= ClassAge, question=f3).

Create a macro named class with one parameter category. In the macro, use %IF &category =Gender %THEN %DO; PROC MEANS for the data final to calculate the mean of the variable f1 by &category. %ELSE %IF &category =ClassAge %THEN %DO; PROC MEANS for the data final to calculate the mean of the variable f2 by &category.

Call the macro %class(category=Gender)

Call the macro %class(category=ClassAge)