| 释义 |
negative binomial distribution
negative binomial distribution[¦neg·əd·iv bī¦nō·mē·əl ‚di·strə′byü·shən] (statistics) The distribution of a negative binomial random variable. Also known as Pascal distribution. negative binomial distribution
negative binomial distribution A distribution parameterised by a mean and an aggregation parameter that is large when aggregation is small; as it becomes larger, the negative binomial distribution approximates a Poisson distribution. Aggregated distributions are often well described empirically by the negative binomial distribution. For instance, macroparasites are typically aggregated in their host populations, such that most hosts harbour few or no parasites while a few have large parasite burdens.AcronymsSeeNBD |