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In this interactive, online activity, bias is explored when the students decide which of several sampling methods are biased. They see how bias affects the percentage of irregular galaxies determined to be in the sample from the Deep Field. After completing this activity students will be able to analyze and identify sampling methods that reduce bias. Student may work independently or in small groups to complete each activity. This activity is apart of the online exploration, Galaxy Hunter. Detailed teacher pages, identified as Teaching Tips on the title pages of the activity, provide science background information, lesson plan ideas, related resources, and alignment with national education standards.
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