结合典型长大下坡路段的交通事故数据，运用数理统计与回归分析方法，研究了交通事故与道路纵断面参数之间的关系。
According to the relative data of typical sections, the relationship between traffic accidents and road vertical section parameters was studied based on statistics and regression methods.
运用置信区间分析、假设检验、聚类分析、回归分析等数理统计分析方法。
I use mathematical statistics analysis, such as confidence intervals, hypothesis testing, K-means Cluster, regression analysis and so on.
通过运用数理统计中的回归分析方法确立采出矿石地质矿量预测数学模型，分析预测相对误差，并对2007年采出矿石地质矿量进行预测。
The model is used to analyze the relative error of forecast and to forecast the exploitable geological ore reserves of Miaogou Mine in 2007.
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