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Sampling

This lesson considers the fundamentals of sampling and attributes of populations versus samples, as well as sampling bias. Two methods for creating valid samples – simple random sampling and stratified sampling – are also discussed.

Sample Topics

  • Literary Digest poll
  • Ann Landers advice column
  • College GPA
  • Email spam filters

Lesson Targets

  • Define populations versus samples
  • Discuss sampling bias, including selection bias and nonresponsive bias
  • Define and create a simple random sample and a stratified sample
  • Determine when to sample with or without replacement

Materials Included

  • Lesson overview with instructor's notes
  • Activity sheet containing 16 exercises
  • Activity answer key
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