It basically suggests that 80% of your results come from 20% of the things you do. What do you think is the 20% that we do that produces 80% of the results in poker?

Poker players mainly use poker mathematics to decide if it is worth betting and chasing a card to make a winning hand. There are two elements that help them make this decision: The number of Outs they have ( the number of cards that can make a winning hand) and what is the probability that an Out will be dealt.

Examples of martingales\n\n An unbiased random walk (in any number of dimensions) is an example of a martingale. A gambler's fortune (capital) is a martingale if all the betting games which the gambler plays are fair.

No, but there's no reason they would ever kick anyone out for that. Far more likely, the player would get a comp of some kind to encourage them to play longer.