A | B |

POISSON | use when the sample is a unit of time, distance, area, or volume |

BINOMIAL | use when there is measurement on a binary scale, and the probability does not change from trial to trial |

HYPERGEOMETRIC | use when sample size is small and when probability changes from trial to trial |

RANDOM | value coming from chance probability |

MEAN | the most likely value to be sampled: the expected frequency of the sample |

DISCRETE | a distribution in which there are only integers |

CUMULATIVE | a distribution which includes a value and all lower values |

NOMINAL | scale in which a variable is measured by classifying each subject |

BERNOULLI | the binomial distribution uses this kind of binary trial, independent of previous results |

SUCCESS | the term for a given outcome (e.g., one category on a binary nominal scale) |