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  2. Monty Hall problem - Wikipedia

    en.wikipedia.org/wiki/Monty_Hall_problem

    With his strategy, the player has a win-chance of at least ⁠ 2 / 3 ⁠, however the TV station plays; with the TV station's strategy, the TV station will lose with probability at most ⁠ 2 / 3 ⁠, however the player plays. The fact that these two strategies match (at least ⁠ 2 / 3 ⁠, at most ⁠ 2 / 3 ⁠) proves that they form the ...

  3. Knuth's up-arrow notation - Wikipedia

    en.wikipedia.org/wiki/Knuth's_up-arrow_notation

    Knuth's up-arrow notation. In mathematics, Knuth's up-arrow notation is a method of notation for very large integers, introduced by Donald Knuth in 1976. [ 1] In his 1947 paper, [ 2] R. L. Goodstein introduced the specific sequence of operations that are now called hyperoperations. Goodstein also suggested the Greek names tetration, pentation ...

  4. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    A unit fraction is a common fraction with a numerator of 1 (e.g., ⁠ 1 / 7 ⁠). Unit fractions can also be expressed using negative exponents, as in 2 −1, which represents 1/2, and 22, which represents 1/(2 2) or 1/4. A dyadic fraction is a common fraction in which the denominator is a power of two, e.g. ⁠ 1 / 8 ⁠ = ⁠ 1 / 2 3 ⁠.

  5. List of numbers - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/List_of_numbers

    A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.

  6. Simpson's rule - Wikipedia

    en.wikipedia.org/wiki/Simpson's_rule

    Namely, composite Simpson's 1/3 rule requires 1.8 times more points to achieve the same accuracy as trapezoidal rule. [8] Composite Simpson's 3/8 rule is even less accurate. Integration by Simpson's 1/3 rule can be represented as a weighted average with 2/3 of the value coming from integration by the trapezoidal rule with step h and 1/3 of the ...

  7. The Magical Number Seven, Plus or Minus Two - Wikipedia

    en.wikipedia.org/wiki/The_Magical_Number_Seven...

    Miller observed that the memory span of young adults is approximately seven items. He noticed that memory span is approximately the same for stimuli with vastly different amounts of information—for instance, binary digits have 1 bit each; decimal digits have 3.32 bits each; words have about 10 bits each. Miller concluded that memory span is ...

  8. 9/11 truth movement - Wikipedia

    en.wikipedia.org/wiki/9/11_truth_movement

    Supporters of the 9/11 Truth movement at an anti-war demonstration in Los Angeles, October 2007. The 9/11 truth movement encompasses a disparate group of adherents to a set of overlapping conspiracy theories that dispute the general consensus of the September 11 attacks that a group of Al-Qaeda terrorists had hijacked four airliners and crashed them into the Pentagon and the original World ...

  9. Three prisoners problem - Wikipedia

    en.wikipedia.org/wiki/Three_Prisoners_problem

    The original three prisoners problem can be seen in this light: The warden in that problem still has these six cases, each with a ⁠ 1 6 ⁠ probability of occurring. However, the warden in the original case cannot reveal the fate of a pardoned prisoner. Therefore, in case 3 for example, since saying "B is pardoned" is not an option, the ...