01
Data Science
4 filmsComing soonWhat working with data is, end to end: one question asked of one public table, what a row, a column and an empty cell mean, and what a chart is a picture of.
Data Science
Every chart in the news, every dashboard at work and every 'statistically significant' is a few simple ideas about numbers that nobody has shown you moving. One idea at a time, on real public data, in plain words.
02
Descriptive Statistics
5 filmsComing soonHow a column of numbers is described: its shape, its middle, its spread, where one value stands among the rest, and what to do with the one that does not fit.
03
Statistical Inference
5 filmsComing soonHow a small sample speaks for a whole population, how it goes wrong, how close it gets, and what "statistically significant" means in a poll, a trial and an online test.
04
Correlation and Regression
4 filmsComing soonHow two variables are read together: correlation, why it is not causation, the line that turns a relationship into a prediction, and what a forecast's percentage means.
05
Big Data
5 filmsComing soonData at the scale of the world: what makes data big, the pipelines that carry it to a dashboard, how a number goes wrong on the way, how a measuring device can be biased, and why removing names does not make data anonymous.