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How much should you trust online ratings? When you’re shopping for items online, it can be hard to know which to buy. Star ratings are a helpful way to quickly compare products, but they can also be misleading.

In this lesson, students use mean, median, and mode to analyze the trustworthiness of 5-star ratings system and suggest ways to make them more reliable.

Students will

  • Calculate mean, median, and mode and compare the appropriateness in context

Before you begin

If students are first learning about mean, median, and mode in the context of this lesson, you may want to add some time for some direct instruction into Q1.

Common Core Standards

Content Standards
Mathematical Practices