Learning Paths
Each learning path is one chapter: a guided route through a topic, one small course at a time. Pick a class to see its chapters in order.
Chapter 6
Learning from Samples, Data and Sampling, Probability and Chance
A poll asks a thousand people and speaks for a whole country. How can a small sample say anything sure about millions? The answer is that chance, which makes every sample a little different, also follows rules. In this chapter you watch samples scatter, measure how far a sample is likely to miss, and turn that into an estimate with a margin of error. Then you test an idea: is a coin fair, does a new method help? Small simulations in Python do the heavy work, so you can see each idea happen before you name it.
3 courses
