stats

Statistical principles

Don't forget the question

Far better an approximate answer to the right question, which is often vague, than an exact answer to the wrong question, which can always be made precise.

-- John W. Tukey

Plot plot plot!

As Justin Matejka & George Fitzmaurice's nice illustrations show ("Same Stats, Different Graphs: Generating Datasets with Varied Appearance and Identical Statistics through Simulated Annealing", ACM SIGCHI 2017), statistical tests do not tell us everything. Know your data: always plot it first!