All in with random hand, get a caller, what are my odds?

[jared701]

I'm trying to come up with the odds of making money using a new odd strategy. I haven't tried this strategy yet so don't know how well it works. My question is, if I simply go all in with any hand, does not matter to me what hand it is, preflop, what are my odds of winning if I get a caller or 2? I'm assuming any kind of table, both loose and tight.

I know you don't really have enough information to make an accurate prediction... but just any random table and any random hand and someone calls what would you guess my odds would be? My brother thought it would be around 70them/30me. Would it be way under that, or possibly higher?