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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.

- When there is a small number of reviews the next review has a bigger impact on the mean than with larger numbers.
- Plenty of online reviews are fake.
- More reviews might be better to rely on than a small number.

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