What's "be likely to" mean?
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Native speaker’s answer
Rebecca
When something is likely to happen, it means that the probability or chance of it occurring is high. Thus, "stressed participants ... were more likely to share in a game ... to win money" means that participants under stress showed a higher chance of sharing in these money games. Ex: It's likely to rain today. (The chance of rain today is high) Ex: He's very likely to win the election. (The chance of him winning the election is high)