Answer:
0.47
Step-by-step explanation:
The question gives you P(A) = 0.53, which is saying that the probability of event 'A' happening is 0.53, or 53%. P(line over-A) means the probability of anything BUT event 'A' happening. Since the guaranteed probability that an event will happen is 1:
1 - 0.53 = 0.47
