Probability axioms (axioms of probability). There is A random event, which is the sample space S. The first axiom P (A), there is a real number value between 0 to 1. 0 ≤ P(A) ≤ 1 Second axiom P(S) = 1 Third axiom For events A1, A2, .., An that is not mutually exclusive. Or write a simple to understand that Or? P(E1 U E2 U ..) = P(E1)+P(E2)+.. As a result, from axiom 1. P(Ac) = 1-P(A) Proving P (S) = 1 = P (A U AC) = P (A) + (AC) 2. To prove. A U B = AB U ABC U ACB P(A U B) = P(AB)+P(ABC)+P(ACB) P(A) = P(AB)+P(ABC), P(B) = P(AB)+P(ACB) Note that writing A ∩ is consecutive, such as AB je na B. Statical Independent If A, B, C are independent (Independent Statical). Will that? P(ABC) = P(A)P(B)P(C) Or extend to A1, ..., An. This is the multiplication rules for celebrities.
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