Lesson: Variance of Discrete Random Variables Mathematics • Third Year of Secondary School

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In this lesson, we will learn how to calculate the variance of discrete random variables.

Students will be able to

calculate the variance of a discrete random variable from a table,
calculate the variance from a probability distribution function of a discrete random variable,
calculate the variance of a discrete random variable from a graph or a word problem describing a real-world system,
find unknowns where the variance is given,