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  2. Memorylessness - Wikipedia

    en.wikipedia.org/wiki/Memorylessness

    The memorylessness property asserts that the number of previously failed trials has no effect on the number of future trials needed for a success. Geometric random variables can also be defined as taking values in N 0 {\displaystyle \mathbb {N} _{0}} , which describes the number of failed trials before the first success in a sequence of ...

  3. Markov property - Wikipedia

    en.wikipedia.org/wiki/Markov_property

    The term strong Markov property is similar to the Markov property, except that the meaning of "present" is defined in terms of a random variable known as a stopping time. The term Markov assumption is used to describe a model where the Markov property is assumed to hold, such as a hidden Markov model .

  4. Exponential distribution - Wikipedia

    en.wikipedia.org/wiki/Exponential_distribution

    In probability theory and statistics, the exponential distribution or negative exponential distribution is the probability distribution of the distance between events in a Poisson point process, i.e., a process in which events occur continuously and independently at a constant average rate; the distance parameter could be any meaningful mono-dimensional measure of the process, such as time ...

  5. Markov chain - Wikipedia

    en.wikipedia.org/wiki/Markov_chain

    A Markov process is a stochastic process that satisfies the Markov property (sometimes characterized as "memorylessness"). In simpler terms, it is a process for which predictions can be made regarding future outcomes based solely on its present state and—most importantly—such predictions are just as good as the ones that could be made ...

  6. Renewal theory - Wikipedia

    en.wikipedia.org/wiki/Renewal_theory

    The Poisson process is the unique renewal process with the Markov property, [1] as the exponential distribution is the unique continuous random variable with the property of memorylessness. Renewal-reward processes

  7. Geometric distribution - Wikipedia

    en.wikipedia.org/wiki/Geometric_distribution

    [1]: 228 The property asserts that the number of previously failed trials does not affect the number of future trials needed for a success. Because there are two definitions of the geometric distribution, there are also two definitions of memorylessness for discrete random variables. [5]

  8. Catalog of articles in probability theory - Wikipedia

    en.wikipedia.org/wiki/Catalog_of_articles_in...

    This page lists articles related to probability theory.In particular, it lists many articles corresponding to specific probability distributions.Such articles are marked here by a code of the form (X:Y), which refers to number of random variables involved and the type of the distribution.

  9. Bernoulli process - Wikipedia

    en.wikipedia.org/wiki/Bernoulli_process

    A Bernoulli process is a finite or infinite sequence of independent random variables X 1, X 2, X 3, ..., such that . for each i, the value of X i is either 0 or 1;; for all values of , the probability p that X i = 1 is the same.