I need some help with a question coming from SAS base exam.
The following SAS program is submitted:
set work.salary(keep = department wagerate);
if first.department then payroll = 0;
payroll + wagerate;
The SAS data set WORK.SALARY, currently ordered by DEPARTMENT, contains 100 observations for each of 5 departments. Which one of the following represents how many observations the WORK.TOTAL data set contains?