Understanding Biased Samples

This Understanding Biased Samples video also includes:

Sometimes you think you are choosing an unbiased group to sample, but are you sure? This video shares two ways we choose biased samples and how to avoid those in the future. Your learners will see why convenience and voluntary-response samples can skew the results and leave us with inaccurate data. Demonstrate to your surveyors ways to find unbiased samples with the other videos in this series. 

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CCSS: Designed
Classroom Considerations

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  • Multiple examples in the slides about different situations using biased samples

  • No asnswer key for the guided practice
  • The second half of the presentation is irreleveant to the video, delete before showing to your class
Common Core