Chatty reference · stats1 week 7

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2026-08-16

27. Stats W7 — Probability

Concepts:

Core axioms:

0\le P(A)\le1

P(S)=1

For disjoint events:

P(A\cup B)=P(A)+P(B)

General addition:

= P(A)+P(B)-P(A\cap B)

Complement:

P(A^c)=1-P(A)

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