Artificial Intelligence / Unit 7 AI 0354 short lesson, about 20 seconds
The Decision Variable
Captions available
The idea
A decision variable has no probabilities attached — the agent chooses its value; chance variables get beliefs, decision variables get chosen.
In practice
The umbrella case: one decision variable — carry or leave — one chance variable — rain at 0.3 — and four outcomes needing utilities.
Where people slip
Drawing up that inventory — what I control, what chance controls, what I care — is most of the work.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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