Which of the following best describes a random variable?
A) A spreadsheet input cell containing a random number generator.
B) The outcome of a simulation model.
C) Any variable whose value cannot be predicted with certainty.
D) All of these describe random variables.

Question

Quizplus · Accepted Answer

All of the options describe a random variable. A random variable is a variable whose numerical value is determined by chance. It can be generated by a number generator or obtained as an outcome of a simulation model. Its value cannot be predicted with certainty, hence it is considered random.

Which of the Following Best Describes a Random Variable