Frequency distribution of each type of large larvae and cocoons conformed to negativebinomialdistribution.
大幼虫和蛹的分布型均符合负二项分布。
2
Results The claim numbers in either groups of policy-holders or in overall policies followed a negativebinomialdistribution.
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。
3
According to a kind of demand distribution, which can be represented as a negativebinomialdistribution, the profit maximization model of those products is deduced.