The phrase "safe bet" means choosing something that is very likely to happen or be successful. It's like making a safe or secure choice. Full definition
Insurance companies like individuals that put effort into maintaining these as they usually appear as safe bets for the insurance companies to go in for. (autoquotenow.com)
They often offer free shipping, and if you know your size — which it sounds like you do — it's a pretty safe bet in ordering. (krembdelakremb.com)
Plus, as I researching hosting options I never found a hosting service where everyone was totally happy with performance, so it seemed as safe a bet as any other service. (datingadviceguy.com)