I got the same question in exam but I want to clear some concepts, In same question can I use if in1 and in2 then output both; if in1 and not in2 then output no_grad_year; If not in1 and in2 then output no_income ; And my second question is when we give answer to question in exam if we look at else if in1 and not in2 then output no_grad_year; in output we will get some missing values if I want answer to question and answer is missing value then I’ll write for or type missing value or what ?? Please explain me. ... View more