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Shannon Entropy This online calculator computes Shannon entropy for a given event probability table and for a given message. |

Probability of given number success events in several Bernoulli trials Gives the probability of k success outcomes in n Bernoulli trials with given success event probability. |

Normally distributed random numbers generator This online calculator uses the Box–Muller transform to generate a sequence of normally distributed random numbers from a source of uniformly distributed random numbers. |

Bernoulli trials table This online calculator calculates probability of k success outcomes in n Bernoulli trials with given success event probability for each k from zero to n. |

Tips and tricks #8: How to reuse existing calculator This article describes process of reusing another calculator's logic (algorithm) in your calculator. |

Urn probability simulator This calculator simulates the urn (or box with colored balls) often used for probability problems, and can calculate probabilities of different events. |

Bayes’ theorem This online calculator calculates posterior probabilities according to Bayes’ theorem. |

Mean, variance and standard deviation of discrete random variable This online calculator calculates the mean, variance, and standard deviation of random variables entered in the form of a value-probability table. |

Geometric Distribution. Probability density function, cumulative distribution function, mean and variance This calculator calculates geometric distribution pdf, cdf, mean and variance for given parameters |

Negative Binomial Distribution. Probability density function, cumulative distribution function, mean and variance This calculator calculates negative binomial distribution pdf, cdf, mean and variance for given parameters |

Hypergeometric Distribution. Probability density function, cumulative distribution function, mean and variance This calculator calculates hypergeometric distribution pdf, cdf, mean and variance for given parameters |

Poisson Distribution. Probability density function, cumulative distribution function, mean and variance This calculator calculates poisson distribution pdf, cdf, mean and variance for given parameters |

Z-score from P-value This online calculator calculates z score from p value |

Number to Probability This online calculator takes a list of events along with number of times the particular event occurred and calculates the probability (and log probability) of each event by dividing event count to the total number of events. |

Conditional entropy This online calculator calculates entropy of Y random variable conditioned on X random variable and X random variable conditioned on Y random variable given a joint distribution table (X, Y) ~ p |

Specific Conditional Entropy This online calculator calculates entropy of Y random variable conditioned on specific value of X random variable and X random variable conditioned on specific value of Y random variable given a joint distribution table (X, Y) ~ p |

Joint Entropy This online calculator calculates joint entropy of two discrete random variables given a joint distribution table (X, Y) ~ p |

Selecting a specified number of rows from the list randomly This calculator allows you to pick a selection of strings from a list at random. You can select with or without repeats. The calculator uses a random number generator built into Javascript. |