Question

The table gives a set of outcomes and their probabilities. Let A be the event "the outcome is less than 2". Find P(A).
Outcome Probability
1 0.3
2 0.4
3 0.2
4 0.1

Answer 1

A is the event {outcome < 2}, which here includes only outcome 1. So
P(A) = P(1) = 0.3.