Answer:
If I'm not wrong, I think it's 0.5
Step-by-step explanation:
This is because if the false posative rate 23% and there are 2 people, you would find 23% of 2, which gives you 0.46. Rounded, this is 0.5. So there is a 0.5% probability that more than 0 valenteers will get false posative results.