1. The problem states that the probability of event A occurring is $P(A) = 0.40$. 2. Probability values range from 0 to 1, where 0 means the event never occurs and 1 means the event always occurs. 3. Here, $P(A) = 0.40$ means there is a 40% chance that event A will happen. 4. No further calculation is needed as the probability is already given. Final answer: $P(A) = 0.40$