Video Poker Glossary
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Bounce Back Cash
Money a casino offers a gambler to get them to return or "bounce back" to a casino. The amount of Bounce Back Cash is often in proportion or relating to the gambler's play (coin-in) or gaming activity and typically is given only to "locals". The amount is often expressed in relative, percentage terms.
See also: Cashback.
Cashback
Money a casino gives a gambler in proportion to his play or coin-in. The amount is often expressed in relative, percentage terms (of total Coin in).
See also: Coin-in.
Central Limit Theorem
A mathematical theorem that states, for any set of independent random variates with finite variance, that the cumulative distribution function of a normalized (scaled) sum of such variates approaches the cumulative distribution function for a normal distribution, as the number of variates increases. Under certain circumstance, the theorem states that the width of the central region of the associated probability distribution function narrows, and approaches zero, as the number of random trials (variants) increases and that the shape (of the central region) of the PDF approaches a normal PDF as the number of trials increases. If all variates are from a single uncorrelated random process, the theorem states that variance decreases as 1/sqrt(n) where n is the number of trials. Since each video poker hand is independent of all other hands, and since video poker's variance is finite, The Central Limit Theorem holds for all video poker, and the variance scales as 1/sqrt(n), where n is the number of hands. However, at the same time, the total bet or coin-in has been increasing proportional to n. Thus the variance in real units (dollars) increases without limit as the player continues to gamble.
See also: PDF, Coin-in, Variance, Central Limit.
Coin-in
The total amount wagered on a slot, keno or video poker machine. For video poker, the Coin-in is equal to the total number of hands played times the average amount bet per hand. The term originates from the fact that all slots machines were once "coin droppers" and is still in use today though most machines are now TITO.
See also: Coin-dropper, TITO.
Coin-out
The total dollar value of all winnings or actual payouts on a slot or video poker machine. The ratio of the Coin-in to Coin-out is the actual (realized) return. The difference between Coin-out and Coin-in is the win (loss)
See also: Coin-in.
Theoretical
The amount (expressed in percent or real units) a casino assumes certain play is worth to them. Hence, a positive Theoretical is an assumed loss to the the player. A casino typically comps players based on their actual Theoretical. For example, a casino may assign a certain game a Theoretical of 5%. Assuming a player's coin-in is $10,000, a casino would then limit total comps to some fraction (less then one) of the theo, $500. If the player had the same coin-in on a game with 1% Theoretical, the comps would have been limited to some fraction of $100.
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