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Data collection

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Intros
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Lessons
  1. Population VS. Sample
    • What is a population?
    • What is a sample?
  2. Different types of sample
    • Convenience sample
    • Random sample: 1) stratified sample & 2) systematic sample
    • Voluntary response sample
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Examples
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Lessons
  1. Who would you survey in each of the following situation? Identify if you would use the population or a sample. Explain.
    1. The government wants to know how many hours high school students exercise each week.
    2. An online department store wants to know how often parents shop online for their children.
    3. A teacher wants to know if his homeroom students want a year-end party.
    4. A computer company wants to know how their customers rate their customer service.