what is the sample space (Ω)
the set of all outcomes
what is an event
a subset of the sample space (Ω)
what are the 3 axioms
Axiom 1 : For every event A, P(A) 0
Axiom 2 : P(Ω) = 1
Axiom 3 : If events A1, A2, A3,… are disjoint, then
P(A1 [ A2 [ A3 [ ···) = P(A1) + P(A2) + P(A3) + ··· .
what is the power set
the set of all possible subsets