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  2. Lottery (decision theory) - Wikipedia

    en.wikipedia.org/wiki/Lottery_(decision_theory)

    In expected utility theory, a lottery is a discrete distribution of probability on a set of states of nature.The elements of a lottery correspond to the probabilities that each of the states of nature will occur, (e.g. Rain: 0.70, No Rain: 0.30). [1]

  3. Train ticket - Wikipedia

    en.wikipedia.org/wiki/Train_ticket

    A train ticket is a transit pass ticket issued by a railway operator that enables the bearer to travel on the operator's network or a partner's network. Tickets can authorize the bearer to travel a set itinerary at a specific time (common for long-distance railroads), a set itinerary at any time (common for commuter railroads ), a set itinerary ...

  4. 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.

  5. Fare avoidance - Wikipedia

    en.wikipedia.org/wiki/Fare_avoidance

    The practice of buying multiple tickets instead of one ticket for a transport itinerary is called split ticketing. [2] Some rail systems or airlines calculate fares based on an individual route's popularity and a host of other factors in addition to mileage. Thus, the total cost of two tickets, from A to P and from P to B, may be less than one ...

  6. Coupon collector's problem - Wikipedia

    en.wikipedia.org/wiki/Coupon_collector's_problem

    In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: if each box of a given product (e.g., breakfast cereals) contains a coupon, and there are n different types of coupons, what is the probability that more than t boxes need to be bought ...

  7. Lottery paradox - Wikipedia

    en.wikipedia.org/wiki/Lottery_paradox

    Although the first published statement of the lottery paradox appears in Kyburg's 1961 Probability and the Logic of Rational Belief, the first formulation of the paradox appears in his "Probability and Randomness", a paper delivered at the 1959 meeting of the Association for Symbolic Logic, and the 1960 International Congress for the History and Philosophy of Science, but published in the ...

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  9. Reservation against Cancellation - Wikipedia

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

    A berth will be allocated to the ticket who reserves an RAC ticket if passengers who already have a confirmed ticket do not board before the train departure or get their confirmed ticket cancelled. [1] [2] A berth is split into 2 seats for 2 RAC ticket holders. An RAC ticket holder is given an empty berth if: If there are any last minute ...