医生根据统计数据估算了手术成功的概率。

The doctor estimated the ___probabilities of successful surgery based on statistical data.

我们数学课正在学习概率的基本概念。

In math class, we're learning the basics of ___probability.

天气预报显示今天下雨的概率是70%。

The weather forecast says the ___probability of rain today is 70%.