Variance and Standard Deviation (SOA Exam P – Probability – Univariate Random Variables Module)

Описание к видео Variance and Standard Deviation (SOA Exam P – Probability – Univariate Random Variables Module)

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After completing this video you should be able to:

- Explain and calculate variance, standard deviation, and coefficient of variation.

𝜎^2 = 𝑉𝑎𝑟(𝑋) = 𝐸[(𝑋−𝜇)^2 ]
=𝐸[𝑋^2] − (𝐸[𝑋])^2 (the second moment minus the square of the first moment)

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