That's means gambling industry are so rich because they take the 99% chance of making money compared to only 1% of their gamblers who make a living in gambling. I don't know what percentage exactly but I do believe it's possible to make a living in gambling and 1% is just too small, maybe like 5%, but like I said, I really don't know because I myself is not making a living in gambling although in the past I tried to find ways to make it possible, but failed.