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  2. Reservation against Cancellation - Wikipedia

    en.wikipedia.org/wiki/Reservation_against...

    Reservation against Cancellation. A Reservation Against Cancellation (RAC) is a type of ticket that can be sold for travel on the Indian Railways. Although it ensures certainty of travel, it does not guarantee a berth. A berth will be allocated to the ticket who reserves an RAC ticket if passengers who already have a confirmed ticket do not ...

  3. Lottery mathematics - Wikipedia

    en.wikipedia.org/wiki/Lottery_mathematics

    In a typical 6/49 game, each player chooses six distinct numbers from a range of 1–49. If the six numbers on a ticket match the numbers drawn by the lottery, the ticket holder is a jackpot winner— regardless of the order of the numbers. The probability of this happening is 1 in 13,983,816. The chance of winning can be demonstrated as ...

  4. Passenger name record - Wikipedia

    en.wikipedia.org/wiki/Passenger_name_record

    A passenger name record ( PNR) is a record in the database of a computer reservation system (CRS) that contains the itinerary for a passenger or a group of passengers travelling together. The concept of a PNR was first introduced by airlines that needed to exchange reservation information in case passengers required flights of multiple airlines ...

  5. Flight delayed or canceled? How to get ahead of the issue ...

    www.aol.com/flight-delayed-canceled-ahead-issue...

    But if you don’t have status and you’re flying economy, you can still maximize your chances of getting your preferred alternate flights by using self-service rebooking tools as soon as possible.

  6. Keno - Wikipedia

    en.wikipedia.org/wiki/Keno

    Keno. Keno / kiːnoʊ / is a lottery -like gambling game often played at modern casinos, and also offered as a game in some lotteries. Players wager by choosing numbers ranging from 1 through (usually) 80. After all players make their wagers, 20 numbers (some variants draw fewer numbers) are drawn at random, either with a ball machine similar ...

  7. Gambler's fallacy - Wikipedia

    en.wikipedia.org/wiki/Gambler's_fallacy

    Gambler's fallacy. The gambler's fallacy, also known as the Monte Carlo fallacy or the fallacy of the maturity of chances, is the belief that, if an event (whose occurrences are independent and identically distributed) has occurred more frequently than expected, it is less likely to happen again in the future (or vice versa).

  8. Risk-neutral measure - Wikipedia

    en.wikipedia.org/wiki/Risk-neutral_measure

    Relevant means those instruments that are causally linked to the events in the probability space under consideration (i.e. underlying prices plus derivatives), and; It is the implied probability measure (solves a kind of inverse problem) that is defined using a linear (risk-neutral) utility in the payoff, assuming some known model for the payoff.

  9. Toto (lottery) - Wikipedia

    en.wikipedia.org/wiki/Toto_(lottery)

    Toto (lottery) Toto (est. in 1968 and stylised as TOTO) is a legalised form of lottery sold in Singapore, known by different names elsewhere. It is held by Singapore Pools, the only legal lottery operator in Singapore. [2] As of April 2015, it was the second most popular type of gambling activity after 4-Digits. [3]