With the dark clouds moving in, rain seems more like a 'probability' than a possibility.
The 'probability' of a coin coming up heads is one out of every two tries.
The 'probability' [='likelihood'] of an earthquake is low/high.
(..) The murderer... You think the murderer has the phone? Maybe she...left it when she left her case. Maybe he took it from her for some reason. Either way, the balance of probability is the murderer has her phone. Sorry...what are we doing? Did I just text a murderer? What good will that do? (..)2010 TvShow: Sherlock Title: A Study in Pink Season: 1 Episode 1