Random Variables
The resources below were chosen to align with the Clackamas Community College statistics curriculum.
Topic  Web page  Video  Other 
Intro to Random Variables 


Basics for Discrete Random Variables 
Coming up with the pdf for a discrete random variable Excel video: Histogram for a random variable 


Expected Value (Mean) of a Discrete Random Variable 

Excel video: Calculating expected value, coin tosses 

Mean, Variance, and Standard Deviation of a Discrete Random Variable 
Mean, median, and variance of a discrete random variable 
Calculating the mean and standard deviation of a random variable Excel video: Calculating the variance and standard deviation of a random variable 

Law of Large Numbers 


Topic  Web page  Video  Other 