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How much would it cost to get all the toys in a Happy Meal? The McDonald’s Happy Meal is a cultural phenomenon. Parents like it because it’s a quick and easy meal, and kids like it because it comes with a toy (typically part of a larger set).

Students use trials, probabilities, and expected value to determine how many meals it takes to get a complete set of Happy Meal toys and debate whether McDonald’s should allow customers to pay a fee to choose their own figurine.

Students will

  • Create frequency distribution from experimental data and interpret the results
  • Use theoretical and experimental probability to reason about real-world decisions
  • Calculate expected value and use it to evaluate decisions in a real-world context

Before you begin

Students should be familiar with theoretical and experimental probabilities.

Common Core Standards

Content Standards
Mathematical Practices