Why Worry About Sampling Variability?

Are the means the same or not? Groups create samples from a bag of numbers and calculate the sample means. Using the sample means as an estimate for the population mean, scholars try to determine whether the difference is real or not.

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CCSS: Designed
Instructional Ideas

  • Complete the sequence of questions with bags A and B and then come back and do the different bag, C
Classroom Considerations

  • The class needs to know how to plot data on a dot plot
  • Prepare three sets of bags of numbers for each group
  • 24th of a 25-part series
Pros

  • The resource has templates needed to create the sampling bags
  • Includes complete answers to the questions in the answer key
Cons

  • The lesson notes reference two later lessons that are actually earlier in the series
Common Core