The severity of side effects experienced by patients while being treated with a particular medicine is under study. The severity is measured on the scale: none, mild, moderate, severe, very severe.
a. Name the variable of interest.
b. Identify the type of variable.
I answered A. The variable of interest is the severity but it's not correct. Why is it not correct?
(B)
They are qualitative variables except Age..
can someone please explain this for me? thanks!!!