# 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

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.

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