Lessons for Topic 2.12
The central limit theoremAverages of enough independent draws look normal, whatever the population looked like.Lesson
Random variablesA number attached to each outcome, and the distribution of those numbers.Lesson
Sampling distribution of a sample meanThe pattern made by the sample mean over many samples of the same size.Lesson
Sampling distribution of a sample proportionThe pattern made by the sample share of successes over many samples of the same size.Lesson
Sampling variability and simulating itDifferent samples from the same population give different statistics, and that spread is predictable.Lesson