Module · Beginner
Correlation
What r measures, what it does not, and when it lies.
- 1 lesson
- 14 min
- 2 simulations
Free module
How to invert a probability, and why a 99%-accurate test can be wrong nine times in ten.
This is the real simulation from the module. No account needed.
Every lesson's title and summary is public. The lessons themselves open once you own the track.
Every lesson in Data Analytics: Statistics & Data VisualizationP(positive | ill) and P(ill | positive) are very different numbers. Swapping them is the most expensive mistake in applied statistics.
What r measures, what it does not, and when it lies.
Why sample means behave so predictably, what a p-value really means, and how much data you need.
Designing, running and reading product experiments — including the mistakes that make the results meaningless.
Reading coefficients, controlling for confounders, and checking whether a regression can be trusted.