Lesson Plan: Expected Values of Discrete Random Variables Mathematics • 10th Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to calculate the expected value of a discrete random variable from a table, a graph, and a word problem.

Objectives

Students will be able to

  • calculate the expectation value of a discrete random variable from a table,
  • calculate the expectation value of a discrete random variable from a graph or a word problem describing a real-world system.

Prerequisites

Students should already be familiar with

  • discrete random variables,
  • the probability distribution function of a discrete random variable.

Exclusions

Students will not cover

  • standard deviation,
  • variance,
  • continuous probability distributions,
  • properties of expectation values (i.e., 𝐸(2𝑋)=2×𝐸(𝑋)).

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