Unit 5, Lesson 21, Grade 7 icon
Unit 5, Lesson 21

Why Worry About Sampling Variability?

EngageNY 45 min(s)

In this lesson, students first consider random samples from two populations that have the same mean. Sampling variability must be considered when deciding if there is evidence that the two population means are actually the same or different, and this idea is developed throughout the exercises. Students then repeat the process by examining two populations that have different means. Students understand that a meaningful difference between two sample means is one that is greater than would have been expected due to just sampling variability.

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