Probabilities

See also several of the entries under Distributions, Frequency Data, Proportions, and Clinical Research Calculators. |

»Exact binomial probabilities | |

»Approximation via the normal distribution | |

»Approximation via the Poisson distribution |

Conditional Probabilities

Adjustment of Subjective Confidence

Using multiple applications of Bayes' theorem, the first of these units will delineate the relationships that exist within an array of simple and conditional probabilities. The second unit performs the same calculations for the situation where the several probabilities are constructed as indices of subjective confidence. Backward Probability Template. Specific application of Bayes' theorem (above). Given the population incidence of a certain disease, and the conditional probabilities of positive and negative test results, what are the probabilities for a particular test result of a true positive, true negative, false positive, and false negative? Adaptable to other kinds of conditional situations.

[See also: Clinical Research Calculators.]