Basic Statistics Part II

Experimental

Sampling data

Probability sampling

Random sampling

  • Separate users based on location: Users on the west coast are placed in
    group A, while users on the east coast are placed in group B
  • Separate users based on the time of day they visit the site: Users who visit between 7 p.m. and 4 a.m. get site A, while the rest are placed in group B
  • Make it completely random: Every new user has a 50/50 chance of being
    placed in either group

Unequal probability sampling

How do we measure statistics?

Measures of center

Measures of variation

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Desi Ratna Ningsih

Desi Ratna Ningsih

Data Science Enthusiast, Remote Worker, Course Trainer, Archery Coach, Psychology and Philosophy Student