Question

The table gives a set of outcomes and their probabilities. Let A be the event "the outcome is divisible by 6". Let B be the event "the outcome is greater than 4". Find P(A or B).
Outcome Probability
1 0.059
2 0.06
3 0.063
4 0.388
5 0.342
6 0.013
7 0.075

Answer 1

A = {6} so P(A)=0.013.
B = {5,6,7} so P(B)=0.342+0.013+0.075=0.430.
Since A ⊂ B, P(A ∪ B)=P(B)=0.430.