Author: Jose S
Sampling and bias for analysts
Your sample is not “the data.” It is a story about who showed up, who got filtered out, and what bias you baked into the chart. Part 1…
What is Gemini? Google’s many AI names, explained
Gemini is Google’s AI assistant family, not one button. Part 1 separates company, models, and products, translates old names like Bard and Duet AI, and maps the app,…
How to set up a Custom GPT’s instructions, knowledge files, and actions
Part 2 of the Custom GPTs tutorial. Structure instructions (role, audience, steps, format, refuse, example), version knowledge files without secrets, and treat actions as a later, higher-risk layer.
Plugins and connectors for office work
Part 4 of Claude Cowork tutorial. Plugins bundle skills, connectors, and sub-agents for office work. Start with folders only, then climb a ladder through instructions, connectors, plugins, and…
What AI can and cannot do for analysis
AI is a sharp intern for analysis, not a signed-off analyst. Part 1 of Practical AI for analytics people maps assist versus replace, where liability for numbers still…
