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  2. Monty Hall problem - Wikipedia

    en.wikipedia.org/wiki/Monty_Hall_problem

    If the car is behind door 1, the host can open either door 2 or door 3, so the probability that the car is behind door 1 and the host opens door 3 is ⁠ 1 / 3 ⁠ × ⁠ 1 / 2 ⁠ = ⁠ 1 / 6 ⁠. If the car is behind door 2 – with the player having picked door 1 – the host must open door 3, such the probability that the car is behind door ...

  3. Door problem - Wikipedia

    en.wikipedia.org/wiki/Door_problem

    A door is an example of a complex feature that is seemingly trivial to implement correctly. In the original description of the analogy, Liz England justifies and explains the job requirements of a designer and how complex the job actually is compared to how the requirements are initially posed (making a door).

  4. Joseph D. Pistone - Wikipedia

    en.wikipedia.org/wiki/Joseph_D._Pistone

    Joseph Dominick Pistone (born September 17, 1939) is an American former FBI agent who worked undercover as Donnie Brasco between September 1976 and July 1981, [nb 1] as part of an infiltration primarily into the Bonanno crime family under the tutelage of Anthony Mirra and later Dominick Napolitano, and to a lesser extent the Colombo crime family, two of the Five Families of the Mafia in New ...

  5. You Might Be Using Your Door Stoppers Wrong: Here's How They ...

    www.aol.com/might-using-door-stoppers-wrong...

    Related: Your Guide to Troubleshooting Door Problems For more Better Homes & Gardens news, make sure to sign up for our newsletter! Read the original article on Better Homes & Gardens .

  6. Lists of unsolved problems - Wikipedia

    en.wikipedia.org/wiki/Lists_of_unsolved_problems

    List of unsolved problems may refer to several notable conjectures or open problems in various academic fields: Natural sciences, engineering and medicine

  7. Straight-three engine - Wikipedia

    en.wikipedia.org/wiki/Straight-three_engine

    Circa-1960 Saab two-stroke engine 2010 Suzuki K10B engine. Among the first cars to use a straight-three engine is the 1953–1955 DKW F91, powered by a 900 cc (55 cu in) two-stroke engine, although this was predated by the 3 cylinder 15hp Rolls Royce produced in 1905 and a number of other cars of this era also used 3 cylinder engines.

  8. Three prisoners problem - Wikipedia

    en.wikipedia.org/wiki/Three_Prisoners_problem

    The three prisoners problem appeared in Martin Gardner's "Mathematical Games" column in Scientific American in 1959. [ 1 ] [ 2 ] It is mathematically equivalent to the Monty Hall problem with car and goat replaced respectively with freedom and execution.

  9. Hydraulic rescue tool - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_rescue_tool

    In operation, the tips of the spreader-cutter's blades are wedged into a seam or gap—for example, around a vehicle door—and the device engaged. The hydraulic pump, attached to the tool or as a separate unit, powers a piston that pushes the blades apart with great force and spreads the seam. Once the seam has been spread, the now-open blades ...