对于广义回归模型，人们也总是假设数据具有名义离差，否则，统计推断更加困难。

For generalized linear and nonlinear models, it is still a conventional hypothesis that observed data should have nominal dispersion, otherwise statistical inference would be more difficult.

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在5%的统计学水平上，权益资本成本、平均资本成本、息税前收益率的标准离差率和财务杠杆系数四者之间无明显的相关性。

Based on 5% of statistics there are no apparent relationships between equity capital cost, average capital cost, standard variation coefficient of EBIT and degree of financial leverage.

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对大麦耐湿性比较研究的几种统计方法中，离差平方和法和隶属函数法对大麦进行耐湿性评价、分类较好。

Ward's method and subfunction method were suitable for the evaluation or classification of waterlogging-tolerance of barley germplasm.

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