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Expected Value




 

Videos and lessons to help High School students learn how to calculate the expected value of a random variable; interpret it as the mean of the probability distribution.


Common Core: HSS-MD.A.2

Related Topics:
Common Core (Statistics & Probability)

Common Core for Mathematics

Comprehensive Online Statistics Lessons


Expected Value: E(X)
Expected value of a random variable.


Statistics and Probability : Expected Value of a Random Variable
Computing the expected value of a random variable X.





Expected value discrete random variable
In this video you learn how to find the expected value of a discrete random variable. This one is the number of dots on a die.


Expected Value and Variance of Discrete Random Variables
An introduction to the concept of the expected value of a discrete random variable. I also look at the variance of a discrete random variable. The formulas are introduced, explained, and an example is worked through.



 

Mean & Expected Value - Probability
A simple explanation of the mean and expected value of a discrete random variable.


Mean and Expected Value of Discrete Random Variables.




Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget which allows your to practice solving Algebra, Trigonometry, Calculus and other math topics.


You can use the Mathway widget below to practice Statistics or other math topics. Try the given examples, or type in your own problem. Then click "Answer" to check your answer.


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