Solve these problems using the probability functions in SAS. Use a single DATA step to create $9$ variables $($y$1$a$,$ y$1$b$,...,$ y$4$b$)$ that store the corresponding answers for Problems $1$a$,1$b$,...,4$b$.$ Use PROC PRINT to display the results rounded to $4$ decimal places. Call your program $$HW$1\_$A$.$sas$.$