Data are collected on the 35 students in a history course. Which of the following is not a variable of the data set ?

A-student birth month
B-political affiliation of student
C-student age
D-student address
E-number of students in the data set

2 answers

Which one has nothing to do with the class?
E. the number of students in the data set is not considered data that they are collecting. All the others are either quantitive or categorical variables.