Section 1
Discrete Random Variables
Book
Version 1
By Boundless
By Boundless
Boundless Statistics
Statistics
by Boundless
3 concepts
![Thumbnail](../../../../../../figures.boundless-cdn.com/18078/raw/screte-probability-distrib.jpg)
Two Types of Random Variables
A random variable
![Thumbnail](../../../../../../figures.boundless-cdn.com/18082/raw/screte-probability-distrib.jpg)
Probability Distributions for Discrete Random Variables
Probability distributions for discrete random variables can be displayed as a formula, in a table, or in a graph.
![Thumbnail](../../../../../../figures.boundless-cdn.com/18084/raw/largenumbers.jpg)
Expected Values of Discrete Random Variables
The expected value of a random variable is the weighted average of all possible values that this random variable can take on.