The volume of liquid in an unopened 1-gallon can of paint is an example of ___________ . 有四个选项:
A. the binomial distribution
B. a discrete random variable
C. a constant
D. a continuous random variable
E. the normal distribution
有人说是常数c,因为一加仑的油是常量。
有人说是d,因为瓶子里的油可以是任意数量,所以是连续性饿。
到底是什么啊。求救求救