Casino – If we win 8 out of 1 games; Winning prize – 7$ and to participate we have to pay – 1$. So In long run, we will lose 1$ for every 8 games.
Business – Only 5 percent return back with money. They return back with 95% people’s money. Here operator will not get any money. So if we analyse properly and then buy, we will be one among that 5 percent people.