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For more information, please see full course syllabus of Statistics
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Lecture Comments (4)

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Post by Saadman Elman on September 3, 2014

I Found this lecture very beneficial. Thanks Dr. Ji Son.

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Post by paula G on January 31, 2014

me too is this a technical fault?

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Post by Manoj Joseph on April 26, 2013

I am finding it difficult to access the last portion of the lecture specifically the example portion at the end. Is it because of accessibility restrictions on my basic subscription?

Methods of Data Collection

  • A census is a sample survey that attempts to include the entire population.

  • A sample survey is a study of some group of individuals selected from a population to represent some larger group.

  • An experiment deliberately imposes some treatment on subjects in order to observe a response while an observational study does not attempt to influence the a response.

Methods of Data Collection

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Purpose 0:05
  • Census 1:22
    • Example: US Census
    • Example: Fireworks Factory
  • Sample Survey 3:41
  • Experiment 6:12
    • Example: Coke vs Pepsi
  • Observational Study 8:19
  • Observational or Experiment 9:30
    • Example 1
    • Example 2
    • Example 3