或然率

例句：

1. 1. The probability of rain is high today.
   今天下雨的可能性很高。
2. 2. The likelihood of success is low for this project.
   这个项目成功的可能性很低。
3. 3. Chances are good that she will come to the party.
   她来参加聚会的可能性很大。