The number of accidents that occur annually on a busy stretch of highway is an example of:
A)a discrete random variable.
B)a continuous random variable.
C)a discrete probability distribution.
D)a continuous probability distribution.

Question

Quizplus · Accepted Answer

The number of accidents is a countable and distinct value, making it a discrete random variable. A and C are similar choices, but C specifically refers to the distribution of probabilities for a discrete random variable, whereas A refers to the random variable itself. B and D are not applicable because the number of accidents cannot take on all possible values, but rather only whole number values.

The Number of Accidents That Occur Annually on a Busy