To Monitor Campus Security, the Campus Police Office Is Taking

Multiple Choice

To monitor campus security, the campus police office is taking a survey of the number of students in a parking lot each 30 minutes of a 24-hour period with the goal of determining when patrols of the lot would serve the most students. If X is the number of students in the lot each period of time, then X is an example of

A) a categorical random variable.
B) a statistic.
C) a discrete random variable.
D) a continuous random variable.