Category: Tutorials
Gaming, Goodhart, and unintended incentives
When a measure becomes a target, people optimize the number instead of the mission. Learn Goodhart and Campbell in plain English, common gaming patterns, and how to pair…
The annotation habit
Annotation turns honest charts into messages people can retell without your voiceover. Learn claim titles, focused callouts, reference lines, trust footnotes, and a clear so-what line that states…
Uncertainty and confidence in plain English
A point estimate without uncertainty is a dare, not a finding. Part 3 of Statistics for analysts explains confidence intervals, margins of error, and “we’re not sure yet”…
Retention, deletion, and we might need it someday
“We might need it someday” is not a retention policy. Learn hot, warm, and cold data, deletion versus anonymize, a five-question keep-or-delete card, and weekly habits that shrink…
Evals for humans
AI drafts look fine until a join or filter is wrong. Part 4 of Practical AI for analytics people shows human evals: spot-checks, golden questions, and a 10-prompt…
