This sentence is taken from the 5th chapter of the Guilty Gear Web-Comic, which you can find here:
All Chapters: https://www.guiltygear.com/ggst/jp/story/
Chapter 5 (sentence on page 4): https://www.guiltygear.com/ggst/jp/news/post-784/
Context: After Valentine, a being from another world with the wish to erase all humans from earth meets two of the main characters she says the following:
(The space is used to indicate where the text was split within the original speech bubble).
I think that I understand the sentence. Valentine simply says that people like the protagonists who choose not to run away are rare. I am however a bit unsure about how 「確率」 is used here. I rechecked the English definition (https://jisho.org/search/kakuritu%20) and Japanese definition as well (https://dictionary.goo.ne.jp/word/%E7%A2%BA%E7%8E%87/). Both articles mention that the word basically means “the chances of something going to happen,” so I kind of have the feeling that some kind of “defining word” of 「確率」is omitted here (as we usually need to know what that something is).
For example in a phrase like 「クマに襲われる確率」the kind of probability (確率) is clearly defined. So I thought that the sentence in question in an abbreviated version of something like:
This however, might just be me failing to understand the real meaning behind the original sentence or the real meaning of 「確率」.
Long story short, I first had difficulties with understanding the sentence mentioned above, because I felt like “a defining phrase” for 「確率」was missing. Therefore, my question is whether the sentence has an omitted “defining phrase” or is my understanding of the word 「確率」just off?