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  2. Empirical probability - Wikipedia

    en.wikipedia.org/wiki/Empirical_probability

    In probability theory and statistics, the empirical probability, relative frequency, or experimental probability of an event is the ratio of the number of outcomes in which a specified event occurs to the total number of trials, [1] i.e. by means not of a theoretical sample space but of an actual experiment.

  3. Experiment (probability theory) - Wikipedia

    en.wikipedia.org/wiki/Experiment_(probability...

    Finally, there is a need to specify each event's likelihood of happening; this is done using the probability measure function, P. Once an experiment is designed and established, ω from the sample space Ω, all the events in F {\displaystyle \scriptstyle {\mathcal {F}}} that contain the selected outcome ω (recall that each event is a subset of ...

  4. Randomized experiment - Wikipedia

    en.wikipedia.org/wiki/Randomized_experiment

    In the statistical theory of design of experiments, randomization involves randomly allocating the experimental units across the treatment groups.For example, if an experiment compares a new drug against a standard drug, then the patients should be allocated to either the new drug or to the standard drug control using randomization.

  5. Multiple comparisons problem - Wikipedia

    en.wikipedia.org/wiki/Multiple_comparisons_problem

    A normal quantile plot for a simulated set of test statistics that have been standardized to be Z-scores under the null hypothesis. The departure of the upper tail of the distribution from the expected trend along the diagonal is due to the presence of substantially more large test statistic values than would be expected if all null hypotheses were true.

  6. Random utility model - Wikipedia

    en.wikipedia.org/wiki/Random_utility_model

    There is a positive probability that an agent will prefer a to b, b to c, and c to a. The maximum likelihood estimator - which is the Kemeny–Young method - is hard to compute (it is Θ 2 P {\displaystyle \Theta _{2}^{P}} -complete).

  7. Checking whether a coin is fair - Wikipedia

    en.wikipedia.org/wiki/Checking_whether_a_coin_is...

    The probability that this particular coin is a "fair coin" can then be obtained by integrating the PDF of the posterior distribution over the relevant interval that represents all the probabilities that can be counted as "fair" in a practical sense. Estimator of true probability (Frequentist approach). This method assumes that the experimenter ...

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