I don't think calculating mathematical odds from natural language is the sort of problem this is trying to solve. A typical LLM hooked up to a calculator would be more appropriate for that.

Jev (and similar) is more for data processing and sentiment analysis. Moderation, search engines, that sort of thing. Jev has a page of proposed use cases where you can get an idea of what they're going for: https://docs.typesafe.ai/concepts/use-case-map