单项选择题
The classification of student class designation (freshman, sophomore, junior, senior) is an example of
A.a categorical random variable.
B.a discrete random variable.
C.a continuous random variable.
D.a parameter.
The classification of student class designation (freshman, sophomore, junior, senior) is an example of
A.a categorical random variable.
B.a discrete random variable.
C.a continuous random variable.
D.a parameter.