binomial population

基本解釋

Then a probability model for population number with 2 pebrine moths in M pebrine population is provided and the model is binomial distribution B(M, 0. 07).
然後，提出了M個(gè)有毒集團(tuán)中含有二衹病蛾的集團(tuán)數(shù)的概率模型，其模型爲(wèi)二項(xiàng)分佈B（M，0．07）；
The results are as follows: The distribution pattern of larvae is aggregative ( negative binomial distribution) . The aggregation dose not change with the densities of population of leaf miner.
結(jié)果表明：菸草潛葉蛾幼蟲在田間呈聚集分佈，聚集強(qiáng)度不因種群密度的改變而改變。