vault backup: 2025-12-13 17:58:54

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2025-12-13 17:58:54 -05:00
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@@ -11,6 +11,16 @@ title: Uncertainty
---
# Uncertainty
%%
## TALK
## TODO
%%
The term "uncertainty" refers to the possibility of multiple outcomes.
## Information
@@ -25,7 +35,7 @@ In statistical inference and [[strategy]],
> is the amount a decision maker would be willing to pay
> for information prior to making a decision.
Suppose information $I$ is available to a decision maker
Suppose information $I$ is available to a decision maker.
Consider these two scenarios:
1. the decision maker does not purchase the information
@@ -45,9 +55,8 @@ V(I) &= P(D)|I - P(D) \\
\end{align*}
$$
> [!info] Expectation Notation
> When forecasting, the payout of decisions is unknown,
> thus
When forecasting, the payout of decisions is unknown,
thus
$$
\mathbb{E}\left[V(I)\right] = \mathbb{E}\left[P(D)\right] - \mathbb{E}\left[P(D)|I\right]