Expected Value and Variance

These videos explain the concepts of Expected Value and Variance, you can use them to go over these concepts again.

Video Explaining Expected Value: E(X)

Video Explaining the Expected Value of a Binomial Distribution
(for more explanation about the Binomial Distribution, click here)

Video Explaining the Variance and Standard Deviation of a Binomial Distribution

You can access the Expected Value and Variance excel exercise by clicking on this link.

The exercise is explained in the video below, use this video when you are stuck.

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