The 3 axioms of the probability are as follows:
1. In an event A, ‘P(A) ≥ 0’. In English, that's ‘For an event A, the probability of ‘A’ is superior or equal to zero (0)’.
2. When ‘S’ is the sample space in an experiment i.e. the set of all possible results, ‘P(S) = 1’.
3. In case ‘A’ and ‘B’ are commonly exclusive products, ‘P(A ∪ B ) = P(A) + P(B)’.