【「可能性」を意味する potential, probability, possibility の意味の違い＋α】③
probability:
「probable（起こりそう）だ」という時の「可能性」で「確率」とも訳される

The probability of collision is small, but they will still happen.
衝突の可能性（確率）は小さいです、しかしそれでも起こるのです。

[↓使い方↓]
[the probability of (doing) sth]
The probability of winning the lottery is really very low.
[probability that]
There is a 95% probability that she will not have the disease.
※同格名詞節が使える