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  2. Coupon collector's problem - Wikipedia

    en.wikipedia.org/wiki/Coupon_collector's_problem

    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 brand of cereals contains a coupon, and there are n different types of coupons, what is the probability that more than t boxes need to be ...

  3. Hilbert's problems - Wikipedia

    en.wikipedia.org/wiki/Hilbert's_problems

    The following are the headers for Hilbert's 23 problems as they appeared in the 1902 translation in the Bulletin of the American Mathematical Society. [1] 1. Cantor's problem of the cardinal number of the continuum. 2. The compatibility of the arithmetical axioms. 3. The equality of the volumes of two tetrahedra of equal bases and equal altitudes.

  4. Problem solving - Wikipedia

    en.wikipedia.org/wiki/Problem_solving

    Problem solving is the process of achieving a goal by overcoming obstacles, a frequent part of most activities. Problems in need of solutions range from simple personal tasks (e.g. how to turn on an appliance) to complex issues in business and technical fields. The former is an example of simple problem solving (SPS) addressing one issue ...

  5. Eight disciplines problem solving - Wikipedia

    en.wikipedia.org/wiki/Eight_Disciplines_Problem...

    The disciplines are: D0: Preparation and Emergency Response Actions: Plan for solving the problem and determine the prerequisites. Provide emergency response actions. D1: Use a Team: Establish a team of people with product/process knowledge. Teammates provide new perspectives and different ideas when it comes to problem solving.

  6. Human-centered design - Wikipedia

    en.wikipedia.org/wiki/Human-centered_design

    Human-centered design ( HCD, also human-centred design, as used in ISO standards) is an approach to problem-solving commonly used in process, product, service and system design, management, and engineering frameworks that develops solutions to problems by involving the human perspective in all steps of the problem-solving process.

  7. List of unsolved problems in mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    The Kourovka Notebook (Russian: Коуровская тетрадь) is a collection of unsolved problems in group theory, first published in 1965 and updated many times since. [14] The Sverdlovsk Notebook ( Russian : Свердловская тетрадь ) is a collection of unsolved problems in semigroup theory , first published in 1969 and ...

  8. TRIZ - Wikipedia

    en.wikipedia.org/wiki/TRIZ

    In English, TRIZ is typically rendered as the theory of inventive problem solving. [3] [4] TRIZ developed from a foundation of research into hundreds of thousands of inventions in many fields to produce an approach which defines patterns in inventive solutions and the characteristics of the problems these inventions have overcome. [5]

  9. Hyperthyroidism and Brain Fog: Is There a Link? - Healthline

    www.healthline.com/health/brain-fog-and...

    Hyperthyroidism may cause symptoms that could contribute to “brain fog.” These symptoms include memory problems, cognitive impairment, anxiety, and slower processing speed.