Question

The difference between a random variable and a probability distribution is_________.

Select one:

a. a random variable does not include the probability of an event

b. a probability distribution can only assume whole numbers

c. a random variable can only assume whole numbers

d. a random variable include the probability of an event

Answer 1

(a). A random variable does not include the probability of an event.

A random variable is a numerical description of the outcome of a statistical experiment while the probability distribution for a random variable describes how the probabilities are distributed over the values of the random variable.