统计推断

Moreover, the intuitionist statistic results by ternary diagrams also account for above conclusion, and try to deduce the locomotion of the different avian hindlimbs.

同时应用三元图表方法得出的直观统计结果也同样说明上述结论，并尝试对不同鸟类后肢骨骼的运动机能进行推断。

The test statistic is converted into a probability for drawing a statistical conclusion.

经常将检验统计量转化为概率值以推断出结论。

The main achievements of the project are as follows: 1 the hypothesis that a decrease in seed mass causes an increase in mean dispersal distance has been tested based on the experiments of weed dispersal by wind. The experimental results partly support the hypothesis. The results will help farmers to make an optimal strategy of weed control; 2 a statistic method for inferring probabilistic distribution function of a random variable has been developed, by which probabilistic distribution functions of weed species dispersal have been determined; 3 the reproduction structure of Bromus sterilis has been studied; 4 a more complex CA model with 25 neighborhood cells were built, which can simulate spread of a weed population. This work promotes developments in both theory and application of CA models; 5 the "mean law" in weed control has been proposed. Accordingly, the algorism of patch spring may be calibrated; 6 the "patch" and "true patch" have been mathematically defined so that herbicide can be efficiently applied; 7 simulation validates that initial configurations of weed will affect dispersal of its population and strategies of controlling it, or its distribution patterns affect its dispersal progresses.

主要完成的工作和取得的成果有：1）用实验证实了重量较轻的杂草种子并不一定飞得比较重的远，其结果有助于农民制订杂草的优化控制策略；2）发展了一种推断随机变量分布函数的统计方法并用它来获得了几个杂草种的扩散分布函数；3）对杂草Bromus sterilis的繁殖结构进行了研究；4）建立了一个具有25邻的较复杂的能模拟杂草扩散的CA模型，并在理论和应用方面促进了CA模型的发展；5）在杂草控制方面提出了&平均法则&，据此可对按块施药方法进行校正；6）精确地定义了&块&和&真块&以便在杂草控制中能更有效地使用除草剂；7）模拟证实杂草种群的初始配置影响其扩散和控制策略，或者格局影响过程。

Hypothesis testing is a usual method of statistical technique ,which is used for deducing checkout discrepancy of laboratories.

假设检验是统计技术较常用的一种分析测定结果进而推断化验室测定的方法、人员、实验室是否存在系统差异的技术。

So the death age of the youngster and infant can be inferred through the length of the tooth, that is, through repeatedly measuring 100 teeth, use math physical statistics methodology to infer dental length and age regression equation, then put the length of the tooth taken from the scene and the type into the equation, and the death age can be inferred.

因此 ，可以利用牙齿长度来推断青、幼年人的死亡年龄。即通过重复测量 10 0颗牙齿，利用数理统计的方法，推导出牙齿长度与年龄的回归方程。然后，将现场提取的孤立牙齿的长度值与种类代入该方程，便可推算出死亡年龄。

By statistical analysis to a large number of data collected from the reliability test of 120km/h raising speed wagon,this paper,based on the theory of reliability engineering,elaborated the reliability of the tested wagon in the field of running safety,maintenance support,failure mode effect and criticality.

通过对120km/h提速货车可靠性试验中收集的大量故障数据进行统计分析，根据18万km的阶段试验数据分析与推断，利用可靠性工程的理论，对货车提速到120km/h运行的可靠性，做出初步的结论性判断，并提出了今后在铁路车辆设计、制造、试验及维护保障管理等各方面，全面引入产品可靠性质量管理理念，进行相应的可靠性深入研究。

The Doppler effect of moving scatterers causes the radar signals to appear as stochastic processes. Some useful knowledge about the clouds and precipitations can be obtained by analysing the statistical characteristics of these processes.

运动质点的多普勒效应使它们散射的雷达信号呈现为一种随机过程，对这随机过程的统计特性进行分析就能够推断云和降水的微物理或运动学的状况。

According to the statistics significant test and whether the sign of factor loading is consistent with the sign of factor discriminant coefficient, every variable's impact direction on residential mortgage default risk can be inferred.

因此，本文利用大规模调查数据应用因子分析从所选的19个变量中识别出了8个因子，并应用这8个因子进行判别分析，再根据统计显著性检验以及因子荷重符号与因子的判别系数符号方向是否一致的标准，推断出了各变量对个人住房抵押贷款违约风险的影响方向。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。