Answer:
The carnival is most likely to win because it does not have the obligation of protecting a customer from something that they did not do and could not foresee.
Explanation:
As the robbery is an event that has not occurred before at the carnival, the carnival's owner could not foresee it, nor has the owner knowledge of this robbery taking place. So the business does not have the duty of protecting their clients from external things, in other words, from third parties, mostly when they could not predict it. For these reasons, the carnival has a higher probability of winning the case.