A random variable is said to be discrete if
A)Its outcomes are countable.
B)It can assume any real number within a given interval.
C)The rules of probability apply.
D)It can be represented graphically.

Question

Quizplus · Accepted Answer

Discrete random variables have outcomes that are countable, such as the number of heads in a coin toss or the number of students in a classroom. This is different from continuous random variables, which can assume any real number within a given interval. The rules of probability always apply to random variables, whether they are discrete or continuous. While discrete variables can be represented graphically, this is not a defining characteristic.

A Random Variable Is Said to Be Discrete If