Video lessons with examples and solutions 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.

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.

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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