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  2. Admissible decision rule - Wikipedia

    en.wikipedia.org/wiki/Admissible_decision_rule

    Let () be a probability distribution on the states of nature. From a Bayesian point of view, we would regard it as a prior distribution.That is, it is our believed probability distribution on the states of nature, prior to observing data.

  3. Probability - Wikipedia

    en.wikipedia.org/wiki/Probability

    The probability of getting an outcome of "head-head" is 1 out of 4 outcomes, or, in numerical terms, 1/4, 0.25 or 25%. However, when it comes to practical application, there are two major competing categories of probability interpretations, whose adherents hold different views about the fundamental nature of probability:

  4. Markov property - Wikipedia

    en.wikipedia.org/wiki/Markov_property

    A stochastic process has the Markov property if the conditional probability distribution of future states of the process (conditional on both past and present values) depends only upon the present state; that is, given the present, the future does not depend on the past.

  5. Lottery (decision theory) - Wikipedia

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

    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]

  6. Probability theory - Wikipedia

    en.wikipedia.org/wiki/Probability_theory

    Methods of probability theory also apply to descriptions of complex systems given only partial knowledge of their state, as in statistical mechanics or sequential estimation. A great discovery of twentieth-century physics was the probabilistic nature of physical phenomena at atomic scales, described in quantum mechanics. [2]

  7. Stochastic process - Wikipedia

    en.wikipedia.org/wiki/Stochastic_process

    If the state space is the integers or natural numbers, then the stochastic process is called a discrete or integer-valued stochastic process. If the state space is the real line, then the stochastic process is referred to as a real-valued stochastic process or a process with continuous state space.

  8. Entropy - Wikipedia

    en.wikipedia.org/wiki/Entropy

    In case states are defined in a continuous manner, the summation is replaced by an integral over all possible states, or equivalently we can consider the expected value of the logarithm of the probability that a microstate is occupied: = ⁡ This definition assumes the basis states to be picked in a way that there is no information on their ...

  9. Entropy (order and disorder) - Wikipedia

    en.wikipedia.org/wiki/Entropy_(order_and_disorder)

    What is the probability that a certain number, or all of the particles, will be found in one section versus the other when the particles are randomly allocated to different places within the box? If you only have one particle, then that system of one particle can subsist in two states, one side of the box versus the other.