大幼虫和蛹的分布型均符合负二项分布。
Frequency distribution of each type of large larvae and cocoons conformed to negative binomial distribution.
考虑了复合负二项风险模型下的破产概率。
The ruin probability of compound negative binomial risk model is considered.
考虑了复合负二项风险模型下的破产概率。
我如何指定在GLM使用负二项式误差分布？
How do I designate a negative binomial error distribution in a GLM using r?
研究表明其分布型属负二项分布，分布的基本成份是个体群。
The results show that the spatial distribution pattern of stephanitis(S. )sevensoni obeys the common negative binomial distribution, the basic component of spatial distribution pattern is colony.
采用随机影响负二项回归模型，评估深管井的使用对儿童发生腹泻的影响。
The effect of deep tube well use on the incidence of childhood diarrhoea was assessed using a random effects negative binomial regression model.
结果四类投保人和全部保单的理赔次数分布均服从负二项分布。
Results The claim numbers in either groups of policy-holders or in overall policies followed a negative binomial distribution.
基于一种负二项分布的离散需求函数，推导了易腐品利润最大化模型。
According to a kind of demand distribution, which can be represented as a negative binomial distribution, the profit maximization model of those products is deduced.
目的：将负二项回归用于新药的安全性评价，以此分析评价不良事件的发生情况。
AIM: to apply negative binomial model for the safety assessment of a new drug, so as to analyze the occurrence of adverse events.
目的介绍并应用广义负二项分布研究湖北钉螺的分布规律，为定量化研究提供理论依据。
Objective To study the distribution of Oncomelania hupensis with generalized negative binomial distribution, and provide the theoretical support for quantitative study.
利用条件矩的性质特征刻画伽玛分布，负二项分布，广义混合指数分布，广义混合几何分布。
By using conditional moments, the author characterized the Gamma, Negative Binomial, Generalized Mixed Exponential and Geometric distributions respectively.
红脂大小蠹寄生的树木和新伐桩有分层抽样的必要及其空间分布格局经拟合为负二项聚集分布。
It is necessity that stratified sampling is used to investigate to the trees and the new stumps, and the spatial distributing pattern of the red turpentine beetles was Negative Binomial Distribution.
在低水平放射性测量中，建议采用负二项式分布代替泊松分布来描述真实测量计数的几率分布。
In the measurement of low-level radioactivity, instead of Poisson distribution, a negative binomial distribution is proposed to denote the probability distribution of actual counts.
通过利用传统生物学统计方法和地统计学方法，得出其卵、幼虫和蛹的空间格局均为负二项分布，即聚集分布。
The spatial pattern of egg, larva and pupa are all the aggregated distribution by analysis with the traditional biostatistics and geo-statistics.
给出了负二项分布的分解定理，进一步研究了负二项分布的有关性质及参数的无偏一致估计，以及在流行病学该分布的生物学意义。
Then, we studied a few of properties of negative binomial distribution and the uniformly unbiased estimator of the parameter, and it's biological significances were explained in Epidemiology.
本文研究了总索赔服从复合二项过程的负风险模型。
The paper considers the negative risk model with the aggregate claims modeled as a compound binomial process.
建立了超线性二阶三个边值问题的一个正解存在定理。这里，非线性项是下有界的并且不需要是非负的。
An existence theorem of positive solution is established for a superlinear second-order three-point boundary value problem. Here, the nonlinear term is bounded below and need not be nonnegative.
建立了超线性二阶三个边值问题的一个正解存在定理。这里，非线性项是下有界的并且不需要是非负的。
An existence theorem of positive solution is established for a superlinear second-order three-point boundary value problem. Here, the nonlinear term is bounded below and need not be nonnegative.
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